diff --git a/src/toast/ops/filterbin.py b/src/toast/ops/filterbin.py
index 5e2d20f96..13d5e82be 100644
--- a/src/toast/ops/filterbin.py
+++ b/src/toast/ops/filterbin.py
@@ -1579,8 +1579,12 @@ def _bin_map(self, data, detectors, filtered):
                 save_pointing=self.binning.full_pointing,
             )
             cov.apply(data, detectors=detectors)
+            log.info_rank(
+                f"Binned covariance and hits in", comm=self.comm, timer=timer
+            )
 
         self.binning.apply(data, detectors=detectors)
+        log.info_rank(f"Binned signal in", comm=self.comm, timer=timer)
 
         mc_root = self.name
         if self.mc_mode:
diff --git a/src/toast/ops/mapmaker_binning.py b/src/toast/ops/mapmaker_binning.py
index a8757654a..c25e07ba0 100644
--- a/src/toast/ops/mapmaker_binning.py
+++ b/src/toast/ops/mapmaker_binning.py
@@ -8,7 +8,7 @@
 
 from ..covariance import covariance_apply
 from ..observation import default_values as defaults
-from ..timing import function_timer
+from ..timing import Timer, function_timer
 from ..traits import Bool, Instance, Int, Unicode, Unit, trait_docs
 from ..utils import Logger
 from .delete import Delete
@@ -158,14 +158,15 @@ def __init__(self, **kwargs):
     @function_timer
     def _exec(self, data, detectors=None, **kwargs):
         log = Logger.get()
+        timer = Timer()
+        timer.start()
 
-        for trait in "pixel_pointing", "stokes_weights":
+        for trait in "pixel_pointing", "stokes_weights", "det_data":
             if getattr(self, trait) is None:
                 msg = f"You must set the '{trait}' trait before calling exec()"
                 raise RuntimeError(msg)
 
-        if data.comm.world_rank == 0:
-            log.verbose("  BinMap building pipeline")
+        log.verbose_rank("  BinMap building pipeline", comm=data.comm.comm_world)
 
         if self.covariance not in data:
             msg = f"Data does not contain noise covariance '{self.covariance}'"
@@ -181,10 +182,6 @@ def _exec(self, data, detectors=None, **kwargs):
             log.error(msg)
             raise RuntimeError(msg)
 
-        # Check that the detector data is set
-        if self.det_data is None:
-            raise RuntimeError("You must set the det_data trait before calling exec()")
-
         # Sanity check that the covariance pixel distribution agrees
         if cov.distribution != data[self.pixel_dist]:
             msg = (
diff --git a/src/toast/ops/mapmaker_utils/mapmaker_utils.py b/src/toast/ops/mapmaker_utils/mapmaker_utils.py
index 1a1db6d6a..ddd5c045b 100644
--- a/src/toast/ops/mapmaker_utils/mapmaker_utils.py
+++ b/src/toast/ops/mapmaker_utils/mapmaker_utils.py
@@ -188,6 +188,7 @@ def _exec(self, data, detectors=None, use_accel=None, **kwargs):
                     )
         return
 
+    @function_timer
     def _finalize(self, data, **kwargs):
         if self.hits in data:
             if self.sync_type == "alltoallv":
@@ -473,6 +474,7 @@ def _exec(self, data, detectors=None, use_accel=None, **kwargs):
                     )
         return
 
+    @function_timer
     def _finalize(self, data, **kwargs):
         if self.inverse_covariance in data:
             if self.sync_type == "alltoallv":
@@ -823,6 +825,7 @@ def _exec(self, data, detectors=None, use_accel=None, **kwargs):
 
         return
 
+    @function_timer
     def _finalize(self, data, use_accel=None, **kwargs):
         if self.zmap in data:
             log = Logger.get()