diff --git a/py/desisurvey/data/config-cmx.yaml b/py/desisurvey/data/config-cmx.yaml
index 7cb5dcf6..3cff13f5 100644
--- a/py/desisurvey/data/config-cmx.yaml
+++ b/py/desisurvey/data/config-cmx.yaml
@@ -167,7 +167,7 @@ tile_radius: 1.63 deg
 # - Pass numbers are arbitrary integers and do not need to be consecutive
 #   or dense. However use of non-standard values will generally require
 #   an update to fiber_assignment_order, above.
-tiles_file: CMX_58_DITHERED_TILES_Jan2020_s.fits
+tiles_file: SV0_612tiles_March2020_uniquepassprogram.fits
 
 commissioning: True
 # tile file is a commissioning tile file. This disables checks related
diff --git a/py/desisurvey/scripts/afternoon_plan.py b/py/desisurvey/scripts/afternoon_plan.py
index aa5079b2..a61ea8f0 100644
--- a/py/desisurvey/scripts/afternoon_plan.py
+++ b/py/desisurvey/scripts/afternoon_plan.py
@@ -101,14 +101,14 @@ def afternoon_plan(night=None, restore_etc_stats=None, configfn='config.yaml',
     if configfn is None:
         configfn = desisurvey.config.Configuration._get_full_path(
             'config.yaml')
+    if not os.path.exists(configfn):
+        configfn = desisurvey.config.Configuration._get_full_path(configfn)
 
     # figuring out the current date requires having already loaded a
     # configuration file; we need to get rid of that.
     desisurvey.config.Configuration.reset()
     config = desisurvey.config.Configuration(configfn)
     log.info('Loading configuration from {}...'.format(configfn))
-    if not os.path.exists(configfn):
-        configfn = desisurvey.config.Configuration._get_full_path(configfn)
     tilefn = config.get_path(config.tiles_file())
     rulesfn = config.get_path(config.rules_file())
     if not os.path.exists(tilefn):
diff --git a/py/desisurvey/scripts/collect_etc.py b/py/desisurvey/scripts/collect_etc.py
index 69f8b8a4..22852f51 100644
--- a/py/desisurvey/scripts/collect_etc.py
+++ b/py/desisurvey/scripts/collect_etc.py
@@ -219,8 +219,11 @@ def read_tile_exp(fn):
                         help='file to write out')
     parser.add_argument('--start_from', type=str, default=None,
                         help='etc_stats file to start from')
+    parser.add_argument('--simulate_donefrac', action='store_true',
+                        help='use exptime/1000 instead of DONEFRAC')
     args = parser.parse_args()
-    res = scan_directory(args.directory, start_from=args.start_from)
+    res = scan_directory(args.directory, start_from=args.start_from,
+                         simulate_donefrac=args.simulate_donefrac)
     if res is not None:
         tiles, exps = res
         write_tile_exp(tiles, exps, args.outfile)