Don,
Maybe not what you want to hear but i' ll throw it out there.........I was thinking about that target last night, and I have a regular BLOCK target now. I also have the Morell Bionic Buck.
The center spot on my Block will after not what I would consider a ton of shooting allow some arrows to penetrate to the fletching.........It got soft pretty quick in that one specific area. Not a problem because its just a square with other dots, but with the Glendel buck you WANT TO keep shooting that one spot over and over. I think the " Sweet Spot" might wear out a little faster than you' d like for a $200 target.........but then again I' m only basing this on my experience with the Block.
My Bionic Buck on the other hand just keeps absorbing shot after shot in one small area with nothing more than a lightly frayed cover.........and if I do shoot it out I just stuff a few more rags etc. into it and staple on a new cover and I' m back in business.
What is the replacement process for the Glendel? Might be something to think about.
Oh and one other thing........if you ask me, they designed the glendel wrong in the first place.........Since the majority of Whitetail hunters are hunting from trees at steep angles, the layers of foam in the buck should be oriented vertically. Another reason i think you will shoot it out quicker as you actually shoot holes in the foam rather than between the layers as the target is intended.
The Makers of the block even recommend that you turn that target on end vertically if you are shooting from a stand or at an angle.........Something ELSE to think about.