I agree since I design these profiles for a living These pressure above would beat the crap out of most and all solid roller profiles above 5,500rpm. The roller would simply just lose contact with the cam over the nose and slam down on the base circle. It will work "Run" but for how long. The top two cars at this years rocky mountain race week had Crower cam, lifters, rockers and spring set up from me. Both running well over the minimums I listed above.
