If you made your fina with a filter it can go through an insulin pin if desired (28/29g). Just use a larger guage drawing needle, and a small 1ml syringe (smaller diameter syringes create higher levels of hydraulic pressure from the force placed on plunger, and it will go through much more easily wiht a 1ml syringe than 3 or 5ml syringe).
J. Luv: I guess I'm the only one with numb delts (i feel nothing with delt shots) and sensitive biceps (with biceps i feel the needle going in the whole way, and they ache for a few days)