I shot at 315, and held pressure for ten seconds each, and all three cavities made dent-free baits!
I did find that I need to have a full cup of plastisol, or I get air in my injector, no matter how I try and avoid it. I think it has to do with the injector bottoming out in the silicone cup, and the filling being interrupted, but that's just a guess.
I will make sure I have enough plastic to fill my 6oz injector without hitting the very bottom of the cup from now on.
The baits came out great with the 4/1/1 mix of plastisol, salt, and blasting sand. They are soft (BJ soft plastic) but seem to be tougher than the GYCB senkos I have been using.
They came out more green than the originals, so I'll be playing around with how much color I use, but that green color gets bit.