Quote Originally Posted by NYC BIG MIKE
I know you weren't addressing me, but I'll answer just the same. I've used 25g for shoulder, quads etc. I usually load with an 18g. I have in emergencies loaded with a 25g too, takes forever. Shooting takes longer but that isn't a bad thing. A slow methodical injection helps for better disbursement of the oil in the muscle cavity.
as you do more cycles as nyc mike has previously stated (60+) you need to start reducing the size of the needle gauge, because of scar tissue. if your relitively new to poking, 23 gauge for a year or 2 bro!!!