RE: String loop: yes or no?
If you shoot a fall away I would go for the loop or if your bow is a short ATA. If you shoot a coventional rest I would stay with a nock & eliminator button. Thats my opinion so it dosn't count for a whole lot!
On my hunting bow I use a loop with a fallaway. On my 3-D bow I shoot off the string and have gone back to shooting a convetional rest. I have found I like to shoot my 3-D without the loop. If I shot a non fall away on my hunting bow I would not shoot a loop again! I have found that it just works really well with a fall away!