results tend to diminish over time because your body is trying to keep up, it wants to reach homeostasis and starts trying to normalize your hormone ratios. One of the byproducts of this is the production of lots of cortisol. To overcome your bodies pesky little reaction you need to up the dose and utilize a cortisol blocker. Oh and yes...those initial two theories are total bro'lore BS....
Spot on. I can not tell you enough what a difference an anti-cortisol/cortisol blocker has made for me. It's huge.
The body seeking homeostasis/adapting physiologically is huge factor as well.
It all comes down to diet/training plus optional cortisol supp if you want to continue to gain in the long run.
Most people tend to keep things the same after a while. Initial and normal reactions are to try to lift heavier and try to eat more... While, in the long run, with LBM gain you do need to up your calories. Continually increasing your calories and lifting heavy can actually be counterproductive.
After 8 weeks on cycle, it's time to change. I quite like to restrict my calories, fully deplete glycogen, and then super-compensate through re-feeds. This will get you growing again.
Also I like to switch to lifting on the lighter side, higher reps, marginally smaller range of motion (4/5ths), slow slow rhythm of repetition.
Creating a rebound is a huge factor for me. Basically famish then re-feed has worked for me when I go longer than 2 months.
I am almost 4 months in to a cut cycle right now. I am using my rebound method and continuing to drop body fat and increase LBM. The past 3 weeks, I have lost roughly 3lbs fat, and gained 2.5lbs LBM... roughly...