I've never done an injectable cycle, so I cant say for that.
but I have ran all oral cycle for 4 weeks, then switched it up to a completly different compound for another 4 weeks. the gains didn't come.
thats only one example. anecdotal.
I am saying orals because this is the type of steroid the conclusion was based off of. numerous researchers agree, gains on fast acting oral anabolic steroids, bring similar gains in 6 weeks, but the gains pretty much stop after 6 weeks.
I dont think there is one expert in the field that would disagree. I am not an expert, nor do i claim to be, I only go off of what expert scientist, and researchers find in their studies.
I've read two recent studies done with anavar. 20mg's in both studies.
in one study, 6 weeks of 100mg of test "e" + 20mg of anavar for only 6 weeks put on almost the same amount of weight as 600mg of test e for 20 weeks, or 600mg of deca for 12 weeks.
this study was done to see if one could make similar gains in less time, with less steroid. ultimately in order to cause less hpta shutdown, and negative side effects. while being able to keep the gains made easier.
another study as previously noted, (I mis represented the study, it was 6 weeks vs 12 weeks) compared 6 weeks vs 12 weeks of 20mg of anavar. the study found 12 weeks did not cause any more signifcant gains vs 6 weeks.
The most important finding of this study was that more than 90% of the gains in total lean body mass and skeletal muscle strength were achieved by study week 6", the researchers write.
That most gain is made during the first six weeks of a course was not a new finding for the researchers. Many doctors who supervise steroids users recommend short-duration courses. “After 4-6 weeks you don’t build up much extra muscle on steroids”, a doctor told us. “If you do continue with them, all you do is put extra strain on your body. It’s better to stop, let your body recover and make sure you retain as much as possible of the extra muscle mass you’ve gained.”
most of the research done on injectables, is one type of injectable vs another, for the same amount of time.
there is a study on amounts, like 300mg vs 600mg of test e.
or things like, effects on high dosages of test e or deca.
im sure there is alo of data based info if one had acces to the popular research journals.
but from the experts and my own experience, i've learned 6 weeks on orals is where you're gonna get the most bang for your buck.
I could make theories on injectable cycle gains, but I coudn't say for sure, as I've never ran an injectable cycle, so I dont know how the gains are, or how they can be manipulated.
but I can say for orals.