make no mistake.. you will get lethargy on tren at those dosages. spreading carbs out will help, but in no way was i saying that it will 100% solve the issue
you got less lethargy later in your run because your gains slowed down. a lot of the damage on the body with tren is done the first 5-6 weeks when your body is really changing. after that things flatten out. of course if you are adding 10, 20, 30 pounds to your lifts in a short time, or putting on fast mass you will get lethargic. it isn't about prolactin, estrogen, testosterone etc etc.. that is just internet parroters trying to pretend to be smart saying that or sources trying to sell you more drugs for your cycle. your body isn't built to change that rapidly, of course its going to rebel.
so bottom line your experiment was not fair. if you had done it the reverse and ran it higher early and then lower later you will have had the same response i guarantee it. this is where experience pays off with tren. also the more you run tren, the more insulin resistant you will become on it. this is why guys say they eat shitty on it and still shred up anyway, but over time no matter how clean you eat on it you still will put on mass anyway. they didn't use it in the cattle industry cause it ripped the cows up, they used it to build mass on cows!