Did it awhile back when I was in my late teens (I'm 26 now an to be honest really havent' had the luxury of having the time to do this since then). When I did though it was real similar to what you said. I gained size and got very lean. However I took naps in the middle of the day and basically acted like a pro bodybuilder minus all the gear, and I probably didn't have as much diet knowledge back then as I do now. In fact not probably definitly did not.
I like to do a bodypart a day or maybe two small bodyparts split into two sessions. Morning I went heavy (more sets and less reps) and at night I went ligheter (less sets more reps. Still kept my workouts to under 30 minutes to 45 minutes tops. SO my total time was about the same. BTW Christiane Thibiduea (sp?) over a t-mag wrote and article awhile back about how he went over to Europe (I think it was Europe) and that was how their bodybuilders trained, twice a day. If you want the link ask and I'll try and find it. Good article. ALso before that I remember Charles Poliquin talking about it back in Muscle Media before anyone else really seamed to (or lets just say that was the first place I say that idea laid out).