I came off for 8 weeks and then it was like I never used it when I went back on again. I never got up to 8/8 though. I only got up to 6/6. Now I am on 4T/6L and I am still losing weight but much slower now. I lost 16 in a little under 3 weeks once I started cardio again. Then I held my weight using only 2T/4L and now that I upped it again I lost 3-4 more and I am only 6-8 pounds from my target.
I suggest you get some clen and ECA to rotate, or go clean, for at least 4-5 weeks, assuming you still have weight to loose, just to keep your body from building a tolerance. But keep in mind that even if you don't come off, like my sister-in-law who was 80 over and is now 40 over, Trex and Lipo will keep working even though you don't feel jacked. But like most people I like the feeling of it so I will continue to come off and use clen, go clean, and then back on just to keep lean and to help with cardio. I don't think I will ever have to go to 6/6 again by Thanksgiving. Yeah sure I won't.