This stuff works very well. Our club recently repaired a dozen or so targets that we leave out all summer for members to shoot. The foam is more rubbery than most. More of the consistency of Rinehart targets. When arrows are removed the hole seals so you can hardly tell it was shot.
How long it'll last is still not determined. Probably not as long as a replacement vital, but then it doesn't cost $140 either.
Anybody ever get the feeling that Delta is raping the hell out of us?