One thing to consider when switching from fingers to release, is you're gonna have to adjust those sights especially on a slower bow. Releasing with fingers alters the angle (ever so slight) of direction the string recoils, whereas a release is straight on (thus making a release more consisent). Also, your draw length changes (shorter) when switchingto a release. One other thing to consider is your arrow rest, not all rests are set up for both, some work better than others for finger release and vis a verse. Good luck!!!

I think you'll find the release is the way to go.