For those who are doing site injections IGF des with IGF des - what size pin are you using? Is 1/2 inch x 27 ga long enough for bis, tris, chest, delts, calves? Or should I use 5/8 x 25ga?
Back in the day i would do the igf-lr3 with insulin pins post workout, in small muscle groups like bi's, tri's, rear/side delts,but never tried in bigger muscle groups
such as glutes, to much fat to penetrate with small pins..lol