29? what are you a diabetic
Sounds like you got some diabetic syringes. Fina will not go through a 29 gauge needle, first of all it's in oil and that shit doesn't fly, second of all Fina is like T-Suspension, it has bits and particals in it and would only jam up the syringe. Get some bigger needles 25 sounds alright for Tris and bis, but it could still be a bitch. I'd suggest sucking it up and buying some 19-21 gauge and injecting your glutes and thighs. It's not as bad as people say, take this from someone who's first shot was with an 18guage 1 1/2". After that, everything else was a walk in the park. Save the arms for the good stuff!!!!
THE BEEF