diff --git a/CHANGELOG.md b/CHANGELOG.md
index 068c28fe..093ae281 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,8 @@ All notable changes to this project will be documented in this file. The format
 ## [Unreleased] - 2023-?-?
 ### Added 
  - Settings | Plotting | Bladebit now supports "no_direct_io: true" option
- - Settings | Plotting | Bladebit now supports "check_plots: true" option to check at end of plot creation
+ - Settings | Plotting | Bladebit now supports "check_plots: 100" option to check at end of plot creation
+ - Settings | Plotting | Bladebit now supports "check_threshold: 0.6" option to delete invalid plots at end of plot creation
 ### Changed
  - Support for [Gigahorse Recompute Server](https://github.com/guydavis/machinaris/wiki/Gigahorse#recompute-server) (single GPU on fullnode/farmer), shared by multiple Gigahorse harvesters.
 ### Updated
diff --git a/config/plotman.sample.yaml b/config/plotman.sample.yaml
index 0ef6f3d7..e5a2d0a1 100644
--- a/config/plotman.sample.yaml
+++ b/config/plotman.sample.yaml
@@ -110,6 +110,8 @@ plotting:
                 mode: diskplot        # Either enable ramplot, diskplot, or gpuplot. 
                 diskplot_cache:   4GB # If diskplot, amount of RAM to allocate to caching disk writes
                 diskplot_buckets: 256 # Optionally set a different number of buckets to use for diskplot
+                #check_plots: 100      # For gpuplot only, will optionally perform given number of validations per new plot
+                #check_threshold: 0.6  # For gpuplot only, will optionally delete a new plot failing validity check below threshold level (0 to 1)
 
         madmax:
                 # Classic Madmax plotter; see https://github.com/guydavis/machinaris/wiki/MadMax