Hyperutectic VS Forged pistons

I ran a Mopar Performance short block with the hyper pistons for years.
6psi of boost and upto 150 shot of N20 at the track. I also did alot of street driving.
I cracked the skirts off 3 pistons while in boost and spraying with a 150 shot. During that run I spun on the 1 to 2 shift and only had 4psi of fuel pressure. I dont know how mant RPMs the engine was at cause my tach only goes upto 8000 RPMs, and it was burried. The piston tops werent damaged at all. I did step upto Diamond forged pistons on my current setup but I am still impressed with the hypers.