diff --git a/public/js/webgl-book-shape-lab.js b/public/js/webgl-book-shape-lab.js
index 0304b22..5005d1a 100644
--- a/public/js/webgl-book-shape-lab.js
+++ b/public/js/webgl-book-shape-lab.js
@@ -70,11 +70,12 @@ const FAST_FLIP_COUNT = 10;
 const FAST_FLIP_OVERLAP = 5;
 const OPEN_SEAM_GAP = 0.003;
 const PAGE_COUNT_MIN = 40;
+const PAGE_COUNT_MAX = 500;
 const PAGE_COUNT_STEP = 10;
-const PAGE_WIDTH = 1.62;
-const PAGE_SPLINE_LENGTH = 1.955;
 const PAGE_LINE_SEGMENTS = 48;
 const PAGE_DEPTH = 2.24;
+const PAGE_WIDTH = PAGE_DEPTH * 2 / 3;
+const PAGE_SPLINE_LENGTH = PAGE_WIDTH;
 const COVER_DEPTH = 2.30;
 const COVER_OVERHANG = (COVER_DEPTH - PAGE_DEPTH) * 0.5;
 const COVER_SUPPORT_OVERHANG = COVER_OVERHANG;
@@ -259,7 +260,7 @@ function rebuildBook() {
     activeSpineHalf = spineHalf;
     activeCoverOuterX = spineHalf + pageWidth + COVER_OVERHANG;
     const lines = simulatePageLines(bundleCount, pageWidth, pageSplineLength, spineWidth, foreEdgeX, bundleSpacing, leftCount);
-    const coverOuterX = solvedStackOuterX(lines) + COVER_OVERHANG;
+    const coverOuterX = spineHalf + pageWidth + COVER_OVERHANG;
     activeCoverOuterX = coverOuterX;
     lastLengthError = measureLineLengthError(lines, pageSplineLength);
     lastSpacingError = measureStackSpacingError(lines, bundleSpacing);
@@ -427,25 +428,7 @@ function calculateSpineWidth(bundleCount) {
 }
 
 function calculateMaximumPageCount() {
-    let maximum = PAGE_COUNT_MIN;
-    for (let candidate = PAGE_COUNT_MIN; candidate <= 1000; candidate += PAGE_COUNT_STEP) {
-        const bundleCount = Math.max(4, Math.round(candidate / 10));
-        if (!isBundleCountReachable(bundleCount)) break;
-        maximum = candidate;
-    }
-    return maximum;
-}
-
-function isBundleCountReachable(bundleCount) {
-    const spineWidth = calculateSpineWidth(bundleCount);
-    const bundleSpacing = calculateBundleSpacing(bundleCount, spineWidth, bundleCount);
-    const foreEdgeX = spineWidth * 0.5 + PAGE_WIDTH;
-    const target = restingTarget(1, foreEdgeX, bundleCount - 1, bundleCount, bundleSpacing);
-    const anchor = spineCurvePoint(1, spineWidth);
-    const chordLength = Math.hypot(target.x - anchor.x, target.y - anchor.y);
-    const solverSlack = PAGE_SPLINE_LENGTH - chordLength;
-    const minimumSlack = PAGE_SPLINE_LENGTH / (PAGE_LINE_SEGMENTS + 1);
-    return solverSlack >= minimumSlack;
+    return PAGE_COUNT_MAX;
 }
 
 function calculateBundleSpacing(bundleCount, spineWidth, leftCount) {
diff --git a/public/webgl-book-shape-lab.html b/public/webgl-book-shape-lab.html
index 74b23c8..811abdc 100644
--- a/public/webgl-book-shape-lab.html
+++ b/public/webgl-book-shape-lab.html
@@ -74,6 +74,6 @@
         <button id="fast_forward" type="button">Fast Forward</button>
         <output id="flip_count">0 / 10</output>
     </div>
-    <script type="module" src="/js/webgl-book-shape-lab.js?v=flip-arclength-width-1"></script>
+    <script type="module" src="/js/webgl-book-shape-lab.js?v=page-ratio-cover-width-1"></script>
 </body>
 </html>