Clen post therapy

I have heard that some people take clen post therapy to help keep gains. My cycle is ending in about 3 weeks (last ject). Wondering how I would take it, and how much it will help. Curruently on what was supposed to be a cutting cycle but I wound up gaining a lot of mass too- 400 deca/500 sust wk 50 win. I like the look I have now, would still like a bit more definintion, but I look damned good now and still have a couple weeks to run. Any advice on clen used in this way is apreciated.

Im going to run it with my pct.
day 1-40mcg
2-60mcg etc
working up to 120-140mcg. Running benadryl every third week for a week.

How effective is it in preserving gains?

when i ran it in pct it didn't seem to help keep gains any better but i did get more definition out of it than i would have after the water weight came off.