that sounds correct, yet usually makers who use hips use a thinner grade. when I compare hips ata to my ap abs, there is a ton of difference.
I'd always suggest abs to anyone since it's easier to care for than hips.
many people have to use fibreglass to make hips kits stronger... just ask a clone trooper!
it's a combination of thickness of material, preparation and temperatures in forming plastics.
hips is not a material I'd want in armor kits I'd have in the future, as I own an hips stormtrooper kit and I have had to
make it stronger and thicker in certain areas on the inside.
putting fibreglass fabric layers and exoxy is how most clone troopers make hips parts stronger for trooping.
abs needs no such modifications.