Sounds like I need to try some GS custom solids for my 500. Maybe they will regulate better than the Woodleighs, shoot at a lower pressure, and foul less as well!!

500 grains-
Question-
Have you tried to regulate GS's HV bullets with the flat nose GS's in your 500?? May not be possible-different weights/bullet conformation here but that could be a ??desirable setup for Buff(expanding/solid bullet).