OOPS didn't see this until now, I asked in the other thread what you meant by D-loop twisting? Where after the shot its facing away from you and then you have to pull it back around so you can put the release back on it? This is what has been happening to me and will get this BCY material. As for the G5 peep I am all over it. Thanks for the help on this one.
Congrats on your shooting and seen that you won also. I made one of my goals this year to learn more about the technical side of bowhunting so lets see where this takes me.
ORIGINAL: GMMAT
Tony:
I stopped using a tubeless peep about 6 mos. into shooting a bow. I don't see the need for one. I WAS having some issues with my D-loop twisting....but I ordered some BCY loop material and actually tied my first D-loop on, Friday night (Shot my best 3D round ever, Sunday.....with my loop and arrow that I fletched

).
As long as your D-loop is snug.....and you have it aligned with your peep (and I'm assuming your string has 100 shots or so on it....and it's "trained" itself....or "settled in")....you shouldn't ever have an issue.
Good luck.