I never tried any 100 gr. broadheads of any kind. Which one of the Spitfires do you use?
Buy them at Walmart, these have the 3 blades that are folded forward (normal positions) and each blade has a forward prong. Right as I pulled the trigger a deer spun and it was a raking shot. Went in behind the third rib and came out about 6” from the right shoulder.
I have heard of Rages sometime not opening on this type shot.
For heavier, larger animals I’d probably use the muzzy mechanical heads and in a heavier weight.