I've used VAPs for the last 3 years, originally with my PSE Revenge. Was shooting 300 spine, 415gr arrow at 308fps. The penetration was unbelievable, they flew like darts and with a high FOC hit like a brick. The last 2 years I stuck with the VAPS with my longbow, the 300 spine but this time with a 530gr arrow, same thing, it was tougher tuning for my longbow but got them flying straight and hitting hard.
Toughness... never shoot into a bag target, because when they hit the bag can throw them off kilter and bend the insert, I was using the Penetrator 2 inserts. Using a block or 3D targets, never had any bend. When hunting grouse they'd bend on occasion dpending on what they end up hitting, but grouse hunting is risky anways.
This year I bumped up to the 250 spine and stainless inserts, got them flying just as well and from what I read the SS insert is tough as nails.