im on cycle right now consisting of sustanon250 injections ed . I injected into my triceps last week and i had a big lump on my tricep and it was red and hot . Someone at the gym told me i didnt inject deep enough which is why it resulted in the lump . I used 5/8 pin . Im 196lbs. 14%body fat and my arms measure between 16.5 - 17 inches .
Im about to do another triceps injection , should i use the 1 inch pin ? I have a load of 5/8s , what can i use those for ?