what is a good loop realese and can i use a caliper release.. i was thinking of a cobra pro caliper release

Scott Rhino is made for loopes.
TRue Ball has a release made for a loop.
Calopers are good for hunting and work on loops.
Scott Mongoose or little goose are caliper release.
I also highly recomend they have a buckle strap rather than noisey velcrove.
I'm sure there is a hand full more i've only shot these.