diff --git a/sardem/cli.py b/sardem/cli.py
index 081dbf1..254bb2e 100644
--- a/sardem/cli.py
+++ b/sardem/cli.py
@@ -29,8 +29,11 @@ def positive_small_int(argstring):
     Usage Examples:
         sardem --bbox -156 18.8 -154.7 20.3  # bounding box: left  bottom  right top
         sardem -156.0 20.2 1 2 --xrate 2 --yrate 2  # Makes a box 1 degree wide, 2 deg high
-        sardem --geojson dem_area.geojson -x 11 -y 3
-        sardem -156.0 20.2 0.5 0.5 -r 10 --data-source NASA_WATER -o my_watermask.wbd # Water mask
+        sardem --bbox -156 18.8 -154.7 20.3 --data-source COP  # Copernicus DEM
+        sardem --geojson dem_area.geojson -x 11 -y 3 # Use geojson file to define area
+        sardem --bbox -156 18.8 -154.7 20.3 --data-source NASA_WATER -o my_watermask.wbd # Water mask
+        sardem --bbox -156 18.8 -154.7 20.3 --data COP -isce  # Generate .isce XML files as well
+
 
     Default out is elevation.dem for the final upsampled DEM.
     Also creates elevation.dem.rsc with start lat/lon, stride, and other info."""
@@ -107,7 +110,7 @@ def get_cli_args():
         choices=Downloader.VALID_SOURCES,
         type=str.upper,
         default="NASA",
-        help="Source of SRTM data (default %(default)s). See README for more.",
+        help="Source of DEM data (default %(default)s). See README for more.",
     )
     parser.add_argument(
         "-isce",
diff --git a/sardem/cop_dem.py b/sardem/cop_dem.py
index d65d265..41a08cc 100644
--- a/sardem/cop_dem.py
+++ b/sardem/cop_dem.py
@@ -31,13 +31,14 @@ def download_and_stitch(
 
     gdal.UseExceptions()
     geoid = "egm08"
-    if download_vrt:
-        cache_dir = utils.get_cache_dir()
-        vrt_filename = os.path.join(cache_dir, "copernicus_GLO_30_dem.vrt")
-        if not os.path.exists(vrt_filename):
-            make_cop_vrt(vrt_filename)
-    else:
-        vrt_filename = "/vsicurl/https://raw.githubusercontent.com/scottstanie/sardem/master/sardem/data/copernicus_GLO_30_dem.vrt"  # noqa
+    # TODO: does downloading make it run any faster?
+    # if download_vrt:
+    #     cache_dir = utils.get_cache_dir()
+    #     vrt_filename = os.path.join(cache_dir, "cop_global.vrt")
+    #     if not os.path.exists(vrt_filename):
+    #         make_cop_vrt(vrt_filename)
+    # else:
+    vrt_filename = "/vsicurl/https://raw.githubusercontent.com/scottstanie/sardem/master/sardem/data/cop_global.vrt"  # noqa
     egm_file = conversions.EGM_FILES[geoid]
     if not os.path.exists(egm_file):
         conversions.download_egm_grid(geoid=geoid)