Wow!!!!! there is alot of knowledge out there,maybe someone could give me some guidance.I just started training again after being in a car accident that nearly ended my life. I am back to 100% after a year of P.T.and I am ready to start bustin' ass again.I am looking for something that I can cycle once maybe twice. just to give me a little jump start in mass and strength. Something that has very little sides,and one that can be stopped without to many negative effects.(if possible) All I want to do is add maybe 10-lbs and thats it.But I also want to retain my gains. Hemadrol or MethylX 4,17 seem to be logical choices for me at least from what I have read about them. Any thoughts,or suggestions?