diff --git a/swash/config.ini b/swash/config.ini
index 52190b4..b155e45 100644
--- a/swash/config.ini
+++ b/swash/config.ini
@@ -20,7 +20,7 @@ mpi=4
 
 [post]
 inp=inp_post
-#compare=inp_post_2
+compare=inp_post_nb
 out=out_post
 #nperseg=1024
 dt=0.25
diff --git a/swash/processing/post.py b/swash/processing/post.py
index ad31c8c..7b70cca 100644
--- a/swash/processing/post.py
+++ b/swash/processing/post.py
@@ -64,13 +64,19 @@ R = np.sqrt(
 )
 
 if config.has_option("post", "compare"):
-    data_comp = np.load(inp.joinpath(config.get("post", "compare")))
-    x_, t_ = data_comp["x"], data_comp["t"]
+    inp_comp = pathlib.Path(config.get("post", "compare"))
+    x_ = np.load(inp_comp.joinpath("xp.npy"))
+    t_ = np.load(inp_comp.joinpath("tsec.npy"))
+
+    botl_ = np.load(inp_comp.joinpath("botl.npy"))
+    watl_ = np.load(inp_comp.joinpath("watl.npy"))
+    vel_ = np.load(inp_comp.joinpath("vel.npy"))
+
     arg_x0_ = np.abs(x_ - x0).argmin()
     arg_t0_ = np.abs(t_ - t0).argmin()
 
-    eta_ = data_comp["watl"][t_ > t0, arg_x0_]
-    u_ = data_comp["vel"][t_ > t0, 0, arg_x0_]
+    eta_ = watl_[t_ > t0, arg_x0_]
+    u_ = vel_[t_ > t0, 0, arg_x0_]
 
     phi_eta_ = sgl.welch(eta_, f, nperseg=nperseg)
     phi_u_ = sgl.welch(u_, f, nperseg=nperseg)
@@ -139,10 +145,10 @@ ax_x.plot(
     np.maximum(watl[arg_t0, :], -botl),
 )
 if config.has_option("post", "compare"):
-    ax_x.plot(x, -data_comp["botl"], color="k", ls="-.")
+    ax_x.plot(x, -botl_, color="k", ls="-.")
     ax_x.plot(
         x,
-        np.maximum(data_comp["watl"][arg_t0, :], -data_comp["botl"]),
+        np.maximum(watl_[arg_t0, :], -botl_),
         ls="-.",
     )
 ax_x.axvline(x0, c="k", alpha=0.2)