Hit the nail on the head. That's exactly the performance gain I get. One, perhaps two reps extra. Clearly such an almost immediate strength gain isnt due to bigger muscles but to more fuel packed into the muscle permitting extra performance. But cycling off creatine after 2-3 months on I see a performance loss over the course of a few weeks. If all I'm going to get from CM is some temporary strength gains and no real hypertrophy as a result I cant see any reason to stay on it.
But I've heard the theory that if a lifter can pack extra nutrients into a muscle over a long enough period of time (i.e. by using creatine) then they could encourage some extra muscle growth. The logic behind this I never heard clearly explained, seems kind of fuzzy. But I want to know if anyone has ever tested this and seen longterm permanent results that have persisted while off creatine and which they felt were due to having used the stuff.