i dont compete but i know this stuff based on common sense..
you shouldnt use any drugs that will make you hold water during the last two weeks. stick to tren, masteron, primo, anavar, halo, and winstrol. no test, no deca, no npp, no dbol, no anadrol, not even euipoise. No Gh either.
when you drop the water retainign drugs, increase the cutting drugs to compensate.
keep diet the same as it has been during entire prep. make sure your contest ready a couple weeks out and coast in.
dont try doing anything funny during the last few days, just drop your water the night before the show. thats it.