You are supposed to be checking your pressures with the engine turning about 1500rpm, not at idle. 35psi at 1500rpm is way too high and probably indicates an over-charge. In these systems you only need about 34oz of gas, and you ideally want 25psi low-side at 1500rpm. There is a direct correlation between pressure and cooling ability. Too high on the low side and it won't cool well, and too low (below 25psi) it won't cool either. Check out some of the automotive a/c webpages if you want to confirm what I am saying.

Good Luck,

Greg