I am using 2x4 bags under my 3x5 plates. It’s a 10 ton press (20,000lbs). 8 square inches so if I press at 8 ton (16,000lbs) that gives 2000 psi. Of course the bag does spread a bit so it’s at least 1500 psi which is more than enough. I have been putting up to 30 gram bud in one bag but I think...