diff --git a/tour-comfy/car.html b/tour-comfy/car.html
index aa2f546..9048f31 100644
--- a/tour-comfy/car.html
+++ b/tour-comfy/car.html
@@ -2227,6 +2227,7 @@
         
         // --- HYDRATION_START ---
         const PRELOADED_IMAGES = [
+                        "20260628_001216_pad_20260626_035101_pad_20260626_034830_jb.nobg.png",
                         "20260627_232502_pad_20260626_035101_pad_20260626_034830_jb.nobg.png",
                         "20260627_232843_pad_20260626_035101_pad_20260626_034830_jb.nobg.png",
                         "20260627_232526_pad_20260626_035101_pad_20260626_034830_jb.nobg.png",
@@ -6923,16 +6924,24 @@
 
         function getImageDisplayRect(img) {
             if (!img || !img.naturalWidth) return null;
+            
+            // If the image is zoomed, getBoundingClientRect() returns the SCALED dimensions.
+            // We need to account for this to find the actual visible image area.
+            const isZoomed = img.classList.contains('zoomed');
+            const scale = isZoomed ? 2.2 : 1.0;
+
             const rect = img.getBoundingClientRect();
             const container = img.parentElement;
             const crect = container.getBoundingClientRect();
 
+            // The natural aspect ratio
             const iw = img.naturalWidth;
             const ih = img.naturalHeight;
-            const cw = rect.width;
-            const ch = rect.height;
-
             const aspect = iw / ih;
+
+            // The container dimensions for the image (before scaling)
+            const cw = rect.width / scale;
+            const ch = rect.height / scale;
             const caspect = cw / ch;
 
             let dw, dh, dl, dt;
@@ -6948,10 +6957,41 @@
                 dl = (cw - dw) / 2;
             }
 
-            // Adjust relative to container if needed, but since img is a flex item
-            // centered in .studio-viewer, its rect.left/top might already be offset.
-            // Actually, dl and dt above are relative to the img element's box.
-            // We want coordinates relative to .studio-viewer.
+            // Adjust for scale: the visual center stays the same, 
+            // but the width/height and offsets from the top-left change.
+            if (isZoomed) {
+                const centerRelX = cw / 2;
+                const centerRelY = ch / 2;
+                
+                // dw, dh are unscaled visual dimensions of the content.
+                // dl, dt are unscaled offsets within the img element's box.
+                
+                // We want the scaled versions.
+                dw *= scale;
+                dh *= scale;
+                
+                // The top-left of the content relative to the center of the img element:
+                const contentRelCenterX = dl - centerRelX;
+                const contentRelCenterY = dt - centerRelY;
+                
+                // The top-left of the content relative to the center of the img element (scaled):
+                const contentRelCenterXScaled = contentRelCenterX * scale;
+                const contentRelCenterYScaled = contentRelCenterY * scale;
+                
+                // The new offsets relative to the top-left of the scaled img element:
+                // Actually, rect.left/top are already for the scaled element's bounding box.
+                // We just need to find where the content starts within that bounding box.
+                const finalDl = contentRelCenterXScaled + (rect.width / 2);
+                const finalDt = contentRelCenterYScaled + (rect.height / 2);
+
+                return {
+                    left: rect.left - crect.left + finalDl,
+                    top: rect.top - crect.top + finalDt,
+                    width: dw,
+                    height: dh
+                };
+            }
+
             const finalLeft = rect.left - crect.left + dl;
             const finalTop = rect.top - crect.top + dt;
 
@@ -7125,23 +7165,20 @@
             const fname = lbNames[lbIdx];
             if (document.getElementById('poseCanvas')) _removePoseOverlay();  // skeleton is per-image
             document.getElementById('poseResults')?.remove();
-            _fsModelFilename = fname;  // keep faceswap/scenery/segment in sync
-            const isVid = isVideo(fname) || fileContentType[fname] === 'video';
+
             const lbImgEl   = document.getElementById('lbImg');
             const lbVideoEl = document.getElementById('lbVideo');
-            
+
             lbImgEl.onload = () => {
                 const dimEl = document.getElementById('lbImgDims');
                 if (dimEl) dimEl.textContent = `${lbImgEl.naturalWidth} x ${lbImgEl.naturalHeight}`;
                 
-                // Use requestAnimationFrame to ensure layout has updated before measuring for checkerboard/previews
-                requestAnimationFrame(() => {
-                    updatePadPreview();
-                    const cb = document.getElementById('sbCheckerboard');
-                    if (cb && cb.checked) toggleCheckerboard(true);
-                });
+                // Overlay re-sync is now handled by ResizeObserver
             };
 
+            _fsModelFilename = fname;  // keep faceswap/scenery/segment in sync
+            const isVid = isVideo(fname) || fileContentType[fname] === 'video';
+
             // Show image dimensions
             const dimEl = document.getElementById('lbImgDims');
             if (dimEl) {
@@ -7163,6 +7200,10 @@
                 lbImgEl.style.display   = '';
                 lbImgEl.classList.remove('zoomed');
                 lbImgEl.src = lbUrls[lbIdx];
+                // If it's already in cache, onload might not fire or already fired
+                if (lbImgEl.complete && lbImgEl.naturalWidth) {
+                    lbImgEl.onload();
+                }
             }
 
             const backBtn = document.getElementById('lbBackBtn');
@@ -9878,6 +9919,20 @@
 
         // Initialize
         document.addEventListener('DOMContentLoaded', () => {
+            const img = document.getElementById('lbImg');
+            if (img) {
+                const ro = new ResizeObserver(() => {
+                    if (_isStudioOpen()) {
+                        requestAnimationFrame(() => {
+                            updatePadPreview();
+                            const cb = document.getElementById('sbCheckerboard');
+                            if (cb && cb.checked) toggleCheckerboard(true);
+                        });
+                    }
+                });
+                ro.observe(img);
+            }
+
             window.addEventListener('resize', () => {
                 if (_isStudioOpen()) {
                     requestAnimationFrame(() => {
@@ -10134,7 +10189,11 @@
         }
 
         function toggleImageZoom() {
-            document.getElementById('lbImg')?.classList.toggle('zoomed');
+            const img = document.getElementById('lbImg');
+            if (img) {
+                img.classList.toggle('zoomed');
+                // The ResizeObserver will handle the follow-up logic automatically.
+            }
         }
 
         // ---- sidebar panels ----
@@ -11731,7 +11790,7 @@
             if (btn) btn.disabled = false;
         }
 
-        function toggleCheckerboard(on) {
+        function toggleCheckerboard(on, isRetry=false) {
             const viewer = document.getElementById('studioViewer');
             const cbLayer = document.getElementById('studioCheckerboard');
             const img = document.getElementById('lbImg');