diff --git a/experiments/mnist_backprop_cmp.py b/experiments/mnist_backprop_cmp.py
index ba93513..3ad0538 100644
--- a/experiments/mnist_backprop_cmp.py
+++ b/experiments/mnist_backprop_cmp.py
@@ -1,6 +1,7 @@
 # model based off https://medium.com/data-science/going-beyond-99-mnist-handwritten-digits-recognition-cfff96337392
 import logging
 import os
+import pathlib
 import time
 import typing
 from typing import Callable
@@ -75,12 +76,13 @@ def train_mnist(
     lr: float = 1e-3,
     batch_size: int = 512,
     step_count: int = 1_000,
+    norm_cls: typing.Callable = nn.BatchNorm,
+    model_weights_filepath: pathlib.Path | None = None,
 ):
     X_train, Y_train, X_test, Y_test = mnist(fashion=getenv("FASHION"))
 
-    model = Model(norm_cls=nn.BatchNorm)
+    model = Model(norm_cls=norm_cls)
 
-    model_weights_filepath = os.environ.get("MODEL_WEIGHTS")
     if model_weights_filepath is not None:
         logger.info("Loading model weights from %s", model_weights_filepath)
         model_state = safe_load(model_weights_filepath)
@@ -154,27 +156,19 @@ def get_test_acc() -> Tensor:
 
 
 if __name__ == "__main__":
-    step_count = 1_000
-    exp_id = ensure_experiment("Backprop Comparison V4")
-    for optimizer_type in ["adam", "muon", "sgd"]:
-        if optimizer_type == "adam":
-            with mlflow.start_run(
-                run_name=f"backprop-adam",
-                experiment_id=exp_id,
-                log_system_metrics=True,
-            ):
-                train_mnist(optimizer_type=optimizer_type, step_count=step_count)
-        else:
-            for lr_base in [1e-2, 1e-3, 1e-4]:
-                for lr in list(map(lambda x: x * 1e-3, range(1, 10))):
-                    with mlflow.start_run(
-                        run_name=f"backprop-{optimizer_type}-lr-{lr}",
-                        experiment_id=exp_id,
-                        log_system_metrics=True,
-                    ):
-                        train_mnist(
-                            optimizer_type=optimizer_type, lr=lr, step_count=step_count
-                        )
+    step_count = 2_000
+    exp_id = ensure_experiment("Switch Training Method")
+
+    with mlflow.start_run(
+        run_name="all-adam",
+        experiment_id=exp_id,
+        log_system_metrics=True,
+    ):
+        train_mnist(
+            optimizer_type="adam", step_count=step_count, norm_cls=nn.InstanceNorm
+        )
+
+    checkpoint_filepath = pathlib.Path("trained-with-marketplace.safetensors")
     with mlflow.start_run(
         run_name="marketplace-v2",
         experiment_id=exp_id,
@@ -189,4 +183,16 @@ def get_test_acc() -> Tensor:
             probe_scale=1e-1,
             marketplace=marketplace,
             manual_seed=42,
+            checkpoint_filepath=pathlib.Path("trained-with-marketplace.safetensors"),
+        )
+    with mlflow.start_run(
+        run_name=f"marketplace-then-adam",
+        experiment_id=exp_id,
+        log_system_metrics=True,
+    ):
+        train_mnist(
+            optimizer_type="adam",
+            step_count=step_count,
+            norm_cls=nn.InstanceNorm,
+            model_weights_filepath=checkpoint_filepath,
         )