I have always shot with my fingers, even when I shot a compound. I tried a release for a while, but it just felt so damn weird, that I never got used to it. That, and the fact that it's SO much easier and less complicated to use your fingers.
However....the compound bow I shot up until about 8 years ago (I shoot a recurve now) was of 1983 vintage, and by today's standards was a LONG wheel to wheel bow. This made it shootable with fingers because the string angle at full draw was not that severe, and made for cleaner finger releases.
With today's short bows, I don't see how you can even shoot them with fingers, as the pinch would be so severe. Bascially they've made compound bows today so that the only thing you can shoot them with is a release.
But if you still want to use your fingers, let me know and I will give you a few tips to try.
Offer No Apologies.....
NRA Endowment Life Member