I had been using sustanon 250 and also have some 300mg/ml. I was getting some pretty bad PIP, like five to six days in duration. Almost as bad as Supertest 400 back in the day. I saw a thread where another guy was having the same issue. Someone recommended cypionate, so I bought some. Should I heat it up a bit before pinning, or is it unnecessary? I also saw a guy on YouTube that recommended pinning more often, e.g. every other day in smaller doses. He claimed that it keeps levels more stable, and can reduce the need for AI's as you are not blasting in a large amount that you body has to try and cope with all at once. Opinions and advice are very much appreciated.