I just picked up some test400 and read alot about how painfull it is. I also got some Test Cyp 50mg/ml Pharmacutical Grade. I was thinking I could mix 1cc of Test400 with 1cc of the Cyp 50mg to ease the pain. I did notice that the Cyp has alot of cottenseed oil added to it. Can I do this if one is Cyp and the other is test E. 450mg of test in one shot seems like alot.