1/2'' wheel studs enough?

I don’t know what you been bending up, but after seeing video of your car run I consider 5/8 wheel studs as “viable risk insurance.” Probably okay without them, but you’re going quick enough that you probably are having to keep check on axles and flanges for cracks, too. I’m reminded of a picture of a strange axle flange that cracked stud to stud and sheared off. It had rust through 2/3 of the crack, meaning it had been there a while.
Going back quite a few years now I had almost new 1/2 inch studs in my Mark Williams axles and snapped them on the starting line losing a slick and bending up the 1/4 panel , luckily the 1/4 was repairable. I sent the axles back to Mark Williams and had 5/8 studs installed and they are still in the car today ! I had Weld Draglites at the time as the one that came off was damaged as in oblong ( egg shaped ) stud holes perhaps the wheel was worn all along ? I got different Draglites and drilled the holes for the 5/8 studs and never had the holes wear again . I upgraded to Holeshot wheels a few years ago and when they were built I had them drilled for 5/8 studs . The car is footbraked , in the mid 500 hp range with 60fts high 1.40s -low 1.50s .