diff --git a/worldgen-c/bin/worldgen b/worldgen-c/bin/worldgen
index d2fa696..c85bbe8 100755
Binary files a/worldgen-c/bin/worldgen and b/worldgen-c/bin/worldgen differ
diff --git a/worldgen-c/src/worldgen.c b/worldgen-c/src/worldgen.c
index e27fecd..84a18c2 100644
--- a/worldgen-c/src/worldgen.c
+++ b/worldgen-c/src/worldgen.c
@@ -217,9 +217,9 @@ void worldgen_prepass(worldgen_ctx *ctx, int min_x, int max_x, int min_z, int ma
 	ctx->trail_segment_count = 0;
 	ctx->trail_segment_cap = 0;
 
-	const int step = 48;
-	const int max_points = 128;
-	const double min_spacing = 64.0;
+	const int step = 96;
+	const int max_points = 32;
+	const double min_spacing = 160.0;
 	int cap = max_points;
 	int count = 0;
 	int *px = (int *)malloc((size_t)cap * sizeof(int));
@@ -271,8 +271,8 @@ void worldgen_prepass(worldgen_ctx *ctx, int min_x, int max_x, int min_z, int ma
 	}
 
 	/* Select hubs: pick top valued, then farthest from existing hubs */
-	const int max_hubs = 3;
-	int hub_indices[3] = {0, 0, 0};
+	const int max_hubs = 2;
+	int hub_indices[2] = {0, 0};
 	int hub_count = 0;
 	int first = 0;
 	for (int i = 1; i < count; ++i) {
@@ -303,17 +303,15 @@ void worldgen_prepass(worldgen_ctx *ctx, int min_x, int max_x, int min_z, int ma
 		}
 	}
 
-	/* Connect hubs together */
-	for (int i = 0; i < hub_count; ++i) {
-		for (int j = i + 1; j < hub_count; ++j) {
-			int *pts = NULL;
-			int path_count = 0;
-			if (build_trail_path(ctx, (double)px[hub_indices[i]], (double)pz[hub_indices[i]],
-			                        (double)px[hub_indices[j]], (double)pz[hub_indices[j]], &pts, &path_count) && pts && path_count >= 2) {
-				append_trail_segment(ctx, px[hub_indices[i]], pz[hub_indices[i]], px[hub_indices[j]], pz[hub_indices[j]], pts, path_count);
-			} else {
-				free(pts);
-			}
+	/* Connect hubs together (if two hubs exist) */
+	if (hub_count == 2) {
+		int *pts = NULL;
+		int path_count = 0;
+		if (build_trail_path(ctx, (double)px[hub_indices[0]], (double)pz[hub_indices[0]],
+		                        (double)px[hub_indices[1]], (double)pz[hub_indices[1]], &pts, &path_count) && pts && path_count >= 2) {
+			append_trail_segment(ctx, px[hub_indices[0]], pz[hub_indices[0]], px[hub_indices[1]], pz[hub_indices[1]], pts, path_count);
+		} else {
+			free(pts);
 		}
 	}
 
@@ -2622,9 +2620,9 @@ static int build_trail_path(worldgen_ctx *ctx, double ax, double az, double bx,
 			if (used[ni]) continue;
 			double next_height = heights[ni];
 			double slope = fabs(next_height - current_height);
-			if (slope > 3.5) continue;
+			if (slope > 3.0) continue;
 			double base_cost = (neighbors[n][0] == 0 || neighbors[n][1] == 0) ? 1.0 : 1.41421356237;
-			double cost = base_cost * (1.0 + slope * 4.0);
+			double cost = base_cost * (1.0 + slope * 6.0);
 			if (dist[current] + cost < dist[ni]) {
 				dist[ni] = dist[current] + cost;
 				prev[ni] = current;