Wow 34 in is pretty short for fingers. But I can'nt tell you to buy a new bow especially after I tell you to ditch you rest. I am just kidding. I partiallly agree with Aurthur as far as paper tuning a finger bow. I do use the paper tune to set my nock height, up and down tares I can get perfect .side to side tares are a little more challenging. I try to get as close to a bullet as I can. And thats my starting point. I then go outside and do the walk back method I group em tight at ten then step back to twenty make my adjustment to group em tight in the same spot as at ten then repeat to 30 and 40. By the time I'm done I can usually group a bare shaft with my fletched arrow out to 30 yds. Then I shoot my broadheads and they 're usually dead on.
As far as whats going on with you set up It could be your rest. I had a simular problem with the timberdoodle rest terrible tares no matter what. If you moved your nock up and down and still get a high tare. My guess would be a clearance problem Maybe a vane hitting the bottom of the biscuit. Or you could be getting alot of finger pinch with that short bow. I solved my timberdoodle problem by going to a cavalier freeflyte with a master lock plunger. I've tried almost every finger rest under the sun and this is my fav. I also use the tuning for tens method with this rest set up. Which is simular to what I explained earlier. But theres a little more to it. If you go to a flipper plunger set up Let me know and I'll get you the info to download the method.