I use T3 at 25mcg and 2 clen twice a day and then about 3-4 days in I add Trex at one twice a day. You will be very warm and save on your heating bill doing this.
I was able to continue my bulking cycle without gaining any BF at all and I reached my target of 8% a month early. So I am very pleased with the results.
The doses are all individual. The dose you use and I use are most likely going to be different.
I use clen for two weeks while I take a break from Thermorexin. I have gone back and forth 2 and 2 as well though. I just drop my Thermorexin dose to one a day and start my clen at the doses I would normally run it at. The Thermorexin keeps me from feeling tired while using clen.