What I ment about HCG- you did use it during entire time- but there is a gap between last shot and HCG and when LH started working, we dont know how long that period was- but it could be long enough to caused reduction in Leydig cells. As I said earlier I'm assuming the worse (as usually).
As for retaining muscle- this is a difficult question as it is very hard to get real date, actually it is impossible- thats why muscular muscular hypertrophy is still not proven in humans- as at the end of testings you would have to amputate body-builders arm and count muscle fibers and thickness etc....
Point is- we dont know did you maintain muscle size or water in muscle cells or is it something else.
Actually, to prove hypertrophy- they would have to exercise one arm only (or exercise with more weights on one arm)- and then amputate both arms to see the difference (thats how they do it in animals)- I dont know if that would be legal- but certainly there would be no volunteers.