RE: going from fingers to trigger?? What to expect?
I switched this past summer myself. You might consider clipping your release on the string with a rubber cushion button to prevent arrow pinch. This works good if you have a longer ATA (mine is 38")bow. I didn't change my draw length and kept my peep close to same spot - anchoring the release at the corner of my mouth. Now I've got a switchback which is much shorter ATA so I went with a string loop then added a kiser button so I can get my eye closer to my peep. I don't really like attaching all this stuff to my string so I might ditch the peep, but it sure shoots nice - squeeze the trigger - whap the arrow goes where your pin is. Good luck with the switch.