L dog thanks for starting this off.
Over 40 I take health , longevity, and joint/ tendon health seriously so unless competing I probably wouldn’t advise tren or at least not extended runs.
For mass I’d stick to the basics and feel safe Running test anywhere from 500-750mg a week , Npp or deca 400-600 / or eq 600-750 a week. Obviously don’t run eq Test and deca at same time with those dosages but simple blasts like test / npp or deca. Or test/ eq have stood the test of time for a reason. At 40 I’d also probably stay from orals as a precaution unless competing
For cutting Over 40
Test , mast , primo are all good options
Mast or primo at 100mg eod along with 200 Test eod is a good little cut or recomp
For cutting can also throw in some T3 active thyroid hormone especially as we age as that may begin to slow down , start low maybe 25mcg a day and every 2 weeks could up it by 25. At 40 I wouldn’t go over 75 a day and wouldn’t run longer than 8weeks
Part 2. If you don’t worry about pct I still think it wise to try to at least take a month off everything completely once or twice a year. Sure you will crash and that time will suck but your receptors will become sensitive when you go back on again in a month and should respond a little better . So for like a month i like to get off everything and use a non hormonal testosterone support product to clean out before going back on trt dose or blast.
Just evaluate blood work to make sure all is in range but the blast cruise can be effective long term just try to take off a month or so here and there to let body have a little mini break.
As for trt I personally think it should just be Test. Around 2-250 a week depending on your t levels and how high normal you want to be. I wouldn’t cruise with other compounds because I don’t want my receptors and body acclimating somewhat to that compound I want to maximize the benefits of it when I blast it
Those are my thoughts and theories at least on a controversial topic (blast/cruise, receptor sensitivity)