I set my arrows up to shoot 125 grn points, so I could shoot the 2 3/4 cut hyper shock.

"I think the shrink wrap sucks"
The shrink wrap is only to take some shots so you know it hit the same as your field tips.
Some people use elec. tape 2-3 raps and then shoot. Try that it works.

And what happens if you lose the band that helps keep the blades closed.
They are normal o-ring any person can get some at a good tool store.

I would shoot 1 and put all the o-ring on the others so you don’t lose them

"Time to go catch some big king salmon on lake MI. this Sat. and Sun than it all hunting"

Go luck they shoot great!