diff --git a/src/bin/backfill_strategy_bench.rs b/src/bin/backfill_strategy_bench.rs
index 65f5101..14a520a 100644
--- a/src/bin/backfill_strategy_bench.rs
+++ b/src/bin/backfill_strategy_bench.rs
@@ -9,7 +9,6 @@ mod sparse_mst;
 
 use std::collections::BTreeMap;
 use std::io::Write;
-use std::sync::Arc;
 use std::time::{Duration, Instant};
 
 use cid::Cid as IpldCid;
@@ -23,7 +22,6 @@ use jacquard_common::types::cid::Cid as AtCid;
 use jacquard_common::types::did::Did;
 use jacquard_common::types::string::{Nsid, RecordKey};
 use jacquard_common::xrpc::{XrpcError, XrpcExt};
-use jacquard_repo::{BlockStore, MemoryBlockStore, Mst};
 use miette::{IntoDiagnostic, Result, WrapErr};
 use serde::Deserialize;
 use smol_str::SmolStr;
@@ -297,22 +295,17 @@ async fn bench_full(
     let bytes = car.body.len();
 
     let parse_start = Instant::now();
-    let parsed = jacquard_repo::car::reader::parse_car_bytes(&car.body)
-        .await
-        .into_diagnostic()
-        .wrap_err_with(|| format!("parse getRepo CAR for {did} ({} bytes)", car.body.len()))?;
+    let parsed = car::parse_car(car.body, false)
+        .wrap_err_with(|| format!("parse getRepo CAR for {did} ({bytes} bytes)"))?;
     let blocks = parsed.blocks.len();
-    let store = Arc::new(MemoryBlockStore::new_from_blocks(parsed.blocks));
-    let root_bytes = store
+    let root_bytes = parsed
+        .blocks
         .get(&parsed.root)
-        .await
-        .into_diagnostic()?
         .ok_or_else(|| miette::miette!("root block missing from getRepo car"))?;
     let root_commit =
-        jacquard_repo::commit::Commit::<jacquard_common::DefaultStr>::from_cbor(&root_bytes)
+        jacquard_repo::commit::Commit::<jacquard_common::DefaultStr>::from_cbor(root_bytes)
             .into_diagnostic()?;
-    let mst: Mst<MemoryBlockStore> = Mst::load(store, root_commit.data, None);
-    let leaves = mst.leaves().await.into_diagnostic()?;
+    let leaves = mst::leaves(&parsed.blocks, root_commit.data)?;
     let matching = leaves
         .iter()
         .filter(|(key, _)| ranges.iter().any(|range| range.contains(key)))