diff --git a/config/comCam/fgcmFitCycle.py b/config/comCam/fgcmFitCycle.py
index 818d76a5..06cef28f 100644
--- a/config/comCam/fgcmFitCycle.py
+++ b/config/comCam/fgcmFitCycle.py
@@ -90,8 +90,8 @@
 
 config.starColorCuts = ("g, i, 0.50, 3.5",)
 config.refStarColorCuts = ("g, i, 0.5, 3.5",)
-# Use a tiny fraction of reference stars to test true self-calibration.
-config.refStarMaxFracUse = 0.001
+# Use a small fraction of reference stars to test self-calibration.
+config.refStarMaxFracUse = 0.1
 config.useExposureReferenceOffset = False
 config.precomputeSuperStarInitialCycle = False
 config.superStarSubCcdDict = {
@@ -102,7 +102,7 @@
     "z": True,
 }
 # Allow calibration to work with at least 10 exposures per night.
-config.minExpPerNight = 10
+config.minExpPerNight = 4
 # Allow calibration to work with very few stars per exposure.
 config.minStarPerExp = 50
 config.nStarPerRun = 5000