Also remember when one uses higher doses of testosterone to accelerate the rate at which one attains increases in muscle fiber (actin/myosin) depending on the degree of muscle gain beyond what one could naturally attain due to genetics one would than require higher testosterone levels to maintain those gains permanently hence one could apply the blast/cruise analogy but for a majority that are using/abusing testosterone/aas for the sole purpose of increased muscle/strength gains higher cruise doses (more than average trt dose 100mg/week) are usually required if one has gained a significant amount of muscle. The main reason aside from health reasons (giving the body a break from supra-physiological levels of testosterone) when cycling is that cycling allows on to continue to make/attain gains beyond ones natural genetic potential (of course with implementing a proper pct protocol), those that choose not to cycle due to the ups/downs of cycling/coming off tend to either blast/cruise (eliminating post cycle pct) or stay on long term without coming off.
Madman, I think that statement is a minefield of confusing statements.
What is my genetic potential? Because genetically I am lower TT, about 375 ng/dl. That is without TRT.
With TRT, my TT is from 690-1300, depending on when I measure it in regards to an injection. Say average 800 TT.
If I do a "blast" and it brings my TT to 3000 ng/dl, put on 5 lbs of muscle, go back to my TRT dose of average 800 TT, then I don't think I would lose the 5 lbs. Because with normal TRT I think it's likely I could put on 5lbs of muscle, it would just take longer. But I don't honestly know.
I do know if I were to not use TRT at all, I would lose muscle mass.
Now if I had done a lot of the "blasting", put on XX lbs of extra muscle over time, let's say I was benching 380 lbs, which for my 5.4 height and an ideal body weight of 130 lbs, is way over IMO my genetic potential and more than I could maintain with "normal" T levels.
So I think losing muscle mass gained while on a supraphysiological level of testosterone then returning to TRT is relative to where one started and how much was gained. If I started from a low base, then it's more likely I could maintain the new level of muscle mass while returning to TRT.
Just speculation on my part, I have no experience in this area, but it seems logical.
A little complicated, but then reality is always more complicated than we like.