diff --git a/xee/__init__.py b/xee/__init__.py
index d38c319..cc7643b 100644
--- a/xee/__init__.py
+++ b/xee/__init__.py
@@ -42,3 +42,4 @@
     'EarthEngineStore',
     'EarthEngineBackendArray',
 ]
+
diff --git a/xee/micro_benchmarks.py b/xee/micro_benchmarks.py
index 18d2af8..3f1479f 100644
--- a/xee/micro_benchmarks.py
+++ b/xee/micro_benchmarks.py
@@ -37,22 +37,31 @@
 
 
 def init_ee_for_tests():
+
   ee.Initialize(opt_url='https://earthengine-highvolume.googleapis.com')
 
 
+_GRID_PARAMS = {
+    'crs': 'EPSG:4326',
+    'crs_transform': (0.25, 0, -180.0, 0, -0.25, 90.0),
+    'shape_2d': (1440, 720),
+}
+
+
 def open_dataset() -> None:
   _ = xarray.open_dataset(
-      'NASA/GPM_L3/IMERG_V06', engine=xee.EarthEngineBackendEntrypoint
+      'NASA/GPM_L3/IMERG_V06',
+      engine=xee.EarthEngineBackendEntrypoint,
+      **_GRID_PARAMS,
   )
 
 
 def open_and_chunk() -> None:
   ds = xarray.open_dataset(
       'NASA/GPM_L3/IMERG_V06',
-      crs='EPSG:4326',
-      scale=0.25,
       chunks={'index': 24, 'width': 512, 'height': 512},
       engine=xee.EarthEngineBackendEntrypoint,
+      **_GRID_PARAMS,
   )
   ds.chunk()
 
@@ -61,10 +70,9 @@ def open_and_write() -> None:
   with tempfile.TemporaryDirectory() as tmpdir:
     ds = xarray.open_dataset(
         'NASA/GPM_L3/IMERG_V06',
-        crs='EPSG:4326',
-        scale=0.25,
         chunks={'time': 24, 'lon': 1440, 'lat': 720},
         engine=xee.EarthEngineBackendEntrypoint,
+        **_GRID_PARAMS,
     )
     ds = ds.isel(time=slice(0, 24))
     ds.to_zarr(os.path.join(tmpdir, 'imerg.zarr'))