Ok I forgot you did say that you had the 5/16. They might work for you but I know for me they just felt like they would sit under the skin and not really absorb properly and they burned like hell. I even tried my first bicep inject today when I used the 1/2 in and it went surprisingly well but I’ll probably feel differently tomorrow. When I tried my first quad injection also with the 5/16 it felt great until the next day and I could hardly walk for like 3 days and my shit was so swollen around my knee I couldn’t believe it I thought I for sure fucked up with that one and will not try that shit ever again