I guess you didn't get your answer. Anyway, i'm using the , old model last time and pressure was about 70lbs. Basically it can clear using s2s2 to SK2Pro2. Although i haven't been using the cams yet, the titanium retainer is holding up pretty well with rev around 8200rpm and its my daily last time. Basically, when choosing the springs, be practical on the RPM and the camshaft selection. Select whats in the range of the cam lift. With stiffer spring, its kinda hard on the timing belt so you might want to opt for a stronger belt or non-china made timing belt.
Hope that helps you. Ps. skunk2 stage 1, just use the OEM type R, its enough to clear.
Oh yeah, valve spring don't eat the cam. The stiff valve spring wears out the retainer, if the springs are TOO stiff and revving crazily. Remember, race engines are rebuilt frequently, so think about it. That goes for every part of the engine, not only the retainer.