diff --git a/org/gpx/20260314_london_italy/js/gpx.js b/org/gpx/20260314_london_italy/js/gpx.js
index f616099..9e8f74a 100644
--- a/org/gpx/20260314_london_italy/js/gpx.js
+++ b/org/gpx/20260314_london_italy/js/gpx.js
@@ -3,7 +3,7 @@
 // L.tileLayer('https://{s}.tile-cyclosm.openstreetmap.fr/cyclosm-lite/{z}/{x}/{y}.png', { // not working, cyclosm should be self-hosted
 L.tileLayer('http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
     minZoom: 6, // avoid zooming outside track range, roughly, to prevent extra tile requests
-    maxZoom: 12,
+    maxZoom: 15,
     attribution: 'Map data &copy; <a href="http://www.osm.org">OpenStreetMap</a>'
 }).addTo(map);
 
@@ -25,6 +25,7 @@
                 shadowUrl: '../gpx/20260314_london_italy/images/pin-shadow.png'
             },
             polyline_options: {
+                smoothFactor: 3, // simplify track at each zoom level, uses the simplify() Leaflet.js call (Ramer-Douglas-Peucker)
                 color: lineColor,
                 opacity: 1,
                 weight: 3,
@@ -33,10 +34,11 @@
     }).on('loaded', function(e) {
         map.fitBounds(e.target.getBounds());
     }).on('mouseover', function(e) {
+        var paths = gpx.split("/");
         this.bindTooltip(
-            "Click to download: " + gpx.split("/")[3],
-            { sticky: true }
-        )
+            "Click to download: " + paths[paths.length - 1],
+            { sticky: true
+        });
         this.openPopup(e.latlng);
     }).on('mouseout', function(e) {
         setTimeout(this.closePopup(), 500);
@@ -48,14 +50,14 @@
     // setTimeout(function(){ map.invalidateSize()}, 500);
 }
 
-addGPX(map, '../gpx/20260314_london_italy/2026-02-27-London.gpx', 'purple')
-addGPX(map, '../gpx/20260314_london_italy/2026-02-28-Tendring.gpx', 'purple')
-addGPX(map, '../gpx/20260314_london_italy/2026-03-01-Rotterdam.gpx', 'purple')
-addGPX(map, '../gpx/20260314_london_italy/2026-03-05-Amsterdam.gpx', 'purple')
-addGPX(map, '../gpx/20260314_london_italy/2026-03-06-Tilburg.gpx', 'purple')
-addGPX(map, '../gpx/20260314_london_italy/2026-03-07-Liege.gpx', 'purple')
-addGPX(map, '../gpx/20260314_london_italy/2026-03-08-Luxembourg.gpx', 'purple')
-addGPX(map, '../gpx/20260314_london_italy/2026-03-09-BaD.gpx', 'purple')
-addGPX(map, '../gpx/20260314_london_italy/2026-03-10-Strasbourg.gpx', 'purple')
-addGPX(map, '../gpx/20260314_london_italy/2026-03-11-Kirchzarten.gpx', 'purple')
-addGPX(map, '../gpx/20260314_london_italy/2026-03-12-Montreux-failed.gpx', 'red')
+addGPX(map, '../gpx/20260314_london_italy/compressed/2026-02-27-London.gpx', 'purple')
+addGPX(map, '../gpx/20260314_london_italy/compressed/2026-02-28-Tendring.gpx', 'purple')
+addGPX(map, '../gpx/20260314_london_italy/compressed/2026-03-01-Rotterdam.gpx', 'purple')
+addGPX(map, '../gpx/20260314_london_italy/compressed/2026-03-05-Amsterdam.gpx', 'purple')
+addGPX(map, '../gpx/20260314_london_italy/compressed/2026-03-06-Tilburg.gpx', 'purple')
+addGPX(map, '../gpx/20260314_london_italy/compressed/2026-03-07-Liege.gpx', 'purple')
+addGPX(map, '../gpx/20260314_london_italy/compressed/2026-03-08-Luxembourg.gpx', 'purple')
+addGPX(map, '../gpx/20260314_london_italy/compressed/2026-03-09-BaD.gpx', 'purple')
+addGPX(map, '../gpx/20260314_london_italy/compressed/2026-03-10-Strasbourg.gpx', 'purple')
+addGPX(map, '../gpx/20260314_london_italy/compressed/2026-03-11-Kirchzarten.gpx', 'purple')
+addGPX(map, '../gpx/20260314_london_italy/compressed/2026-03-12-Montreux-failed.gpx', 'red')