diff --git a/server/src/mine.rs b/server/src/mine.rs
index bf5fb75..9b89e08 100644
--- a/server/src/mine.rs
+++ b/server/src/mine.rs
@@ -135,7 +135,7 @@ const USELESS: [&str; 5] = [
     "minecraft:gravel",
     "minecraft:cobblestone",
     "minecraft:cobbled_deepslate",
-    "minecraft:diorite",
+    "minecraft:rhyolite",
 ];
 
 /// Things that are desirable
@@ -148,7 +148,19 @@ pub async fn mine(turtle: TurtleCommander, pos: Vec3, fuel: Position, storage: P
     let volume = chunk.x * chunk.y * chunk.z;
     let mut pos = pos;
     let mut valuables = Vec::new();
+
+    async fn refuel_needed(turtle: &TurtleCommander, volume: i32, fuel: Position) -> Option<()> {
+        Some(if (turtle.fuel().await as f64) < (volume + (fuel.pos-turtle.pos().await.pos).abs().sum()) as f64 * 1.1 {
+            println!("refueling");
+            turtle.goto(fuel).await?;
+            println!("docked");
+            refuel(turtle.clone()).await;
+        })
+    }
+
     loop {
+        refuel_needed(&turtle, volume, fuel).await?;
+
         mine_chunk(turtle.clone(), pos, chunk).await?;
 
         valuables.append(&mut near_valuables(&turtle, pos, chunk).await);
@@ -161,12 +173,8 @@ pub async fn mine(turtle: TurtleCommander, pos: Vec3, fuel: Position, storage: P
             turtle.execute(near.dig(block)?).await;
             observe(turtle.clone(), block).await;
             valuables.append(&mut near_valuables(&turtle, near.pos, Vec3::new(2,2,2)).await);
-        }
 
-        if (turtle.fuel().await as f64) < (volume + (fuel.pos-turtle.pos().await.pos).abs().sum()) as f64 * 1.1 {
-            println!("refueling");
-            turtle.goto(fuel).await?;
-            refuel(turtle.clone()).await;
+            refuel_needed(&turtle, volume, fuel).await?;
         }
 
         if dump_filter(turtle.clone(), |i| USELESS.iter().any(|u| **u == i.name)).await > 12 {
diff --git a/server/src/paths.rs b/server/src/paths.rs
index e5b744f..44bb54b 100644
--- a/server/src/paths.rs
+++ b/server/src/paths.rs
@@ -61,8 +61,8 @@ fn next(from: &Position, world: &WorldReadLock) -> Vec<(Position, u32)> {
     let ahead = from.pos + from.dir.unit();
     insert(&mut vec, ahead, from.dir, world, UNKNOWN);
 
-    let behind = from.pos - from.dir.unit();
-    insert(&mut vec, behind, from.dir, world, None);
+    //let behind = from.pos - from.dir.unit();
+    //insert(&mut vec, behind, from.dir, world, None);
 
     let above = from.pos + Vec3::y();
     insert(&mut vec, above, from.dir, world, UNKNOWN);
@@ -81,13 +81,15 @@ pub const TRANSPARENT: [&str; 3] = [
 ];
 
 /// Blocks that are fine to tunnel through
-const GARBAGE: [&str; 6] = [
+const GARBAGE: [&str; 8] = [
     "minecraft:stone",
     "minecraft:dirt",
     "minecraft:andesite",
     "minecraft:sand",
     "minecraft:gravel",
     "minecraft:sandstone",
+    "minecraft:deepslate",
+    "twigs:rhyolite",
 ];
 
 /// time taken to go through uncharted territory (in turtle. calls)
diff --git a/server/src/turtle.rs b/server/src/turtle.rs
index 69ae773..79b94e2 100644
--- a/server/src/turtle.rs
+++ b/server/src/turtle.rs
@@ -117,6 +117,7 @@ impl Turtle {
         Self {
             name: self.name,
             fuel: self.fuel,
+            fuel_limit: self.fuel_limit,
             position: self.position,
             pending_update: self.pending_update,
             queued_movement: self.queued_movement,