There's no need to taper the sustanon like that. It is designed so that it is self tapering. I would consider more frequent injections with the sust. Something like 200mg every three days. Deca is not self tapering, so if you actually do believe in tapering you might want to taper the deca. I think you should take the winstrol weeks 6-10 at the doseage you planned. The winstrol will work better if it is stacked when the testosterone is at its strongest dose, with the prop enhanced sust that will be the middle of your cycle. Also alot of folks believe that winstrol can counteract feminizing side effects of deca. which is another reason to take it earlier in your cycle. Just some things to consider for a better cycle. You might want to do a search on nolvadex over the board. In my opinion it doesn't hurt to take it throughout a cycle. At worst it will make you retain less water.