Was thinking if I used a 29 gauge or 31 gauge slin pin to pin ED where would the best spots be. 29 gauge is 1 inch needle and 31 gauge is 5/8 inch. Has anyone done gear with slin pins anyway? My only worry is I don't actually hit the muscle. My previous cycle my roommate down the hall was going to be a doctor, so she did all the injections. So this is new to me.
Thanks,