Comp vs Lunati

Never ran that Lunati grind but ran the .494/.513 in my 416 when i first built it with excellent results.also ran the .513/.533 and .533/.552 in a 360 both excellent cams also..friend was having problems with Comp cams went through 3 of them before getting one that wouldn't wipe out a lobe(and yes he does know what he's doing)..another builder i know doesn't use Comp cams anymore either..