Vacuum was at 24-25. the pump I was using wasnt the best. kept it there for about 30 minutes...then closed the valve, removed vacuum, attached refrigerant, opened low side, and opened refrigerant valve. I will probably go in the garage and do it again today.
I had the vehicle running and the tank open to try and allow the charge to continue, but it just stays stuck at 30. I am using harbor freight regulators, so the gauge could be broken.. I could try and service the low side with the high side gauge to verify pressure.
I believe I read 35-40 low was enough, but im going to dive back into the books if I can find the correct figures.