I always use 23gauge, 1 and 1/2 inch pins for glute shots. For quad shots i use 23gauge, 1 inch pins!!! Here in Canada i can only get my hands on BD, never had a problem with them!! Hope this helps bro, and good luck with your cycle!!!
25G 1" for quad. Never hurts and hitting a nerve is less likely. Get some 18G needles also. Suck up the juice with the 18G then swap over to 25G to inject.