Your masteron, anavar and winstrol should be run up to the day of the show. The only thing you drop steroid wise in any case is testosterone but you don't always drop it. If you're looking great now and all you need to do is dry up, leave everything alone and as is. If you need to absolutely drop your test out, normally you can first try lowering the dose. You may end up needing to take it to a low end TRT level but there's rarely a reason to ever cut it out below a low end TRT level.