Well, I know this post is late in the discussion, but here goes: If you are an athelete and entering your senior year? bad time to think about this. Hate to make you feel regretful, but maybe you should have thought about this when you were a sophmore before junior year football season started (no track that year ... or the other way around-whatever your better sport was). Sure your lift numbers are good because you have been training with what I call "athletic lifts" probably since high school. What you really need to ask yourself is what your goals are. I was a collegiate athelete too, I was drug tested. Do you want to get busted and sit out your senior year? What about after college? Is that it? Are you looking at a professional career in sports? Graduate school? So maybe wait on the juice, from an athletic strategy standpoint. But do whatever you want.
I do suggest that you up your calories. Check out some of Berardi's nutrition articles. He even addresses student life and how to eat properly (since at the time he was pursuing his PhD ... still might, don't know).
Here are my stats when I was a senior: 8-10 hrs sleep every night (very important and hard to do when in school) your senior year should be cake though, all your hard classes out of the way; well over 6000 calories a day (6000 was my mark, anything over was icing on the cake) make sure you are getting good sources of fat (flax oil, fish oils, olive oil); and I was at 270 lbs and stayed around 10% bf. But then again, I was one of those guys you talk about that was on some kind of steroid ... actually a lot of different steroids. But that was almost 3 years ago. I did lose some weight, life tends to do that to you (a real job, car payments, house payments) kind of hit me hard and I have been clean since (no juice). Getting back on the horse though. If you care. Hope this helps.