So when you say compete in BB in the near future, I assume you mean you'd like to use this cycle to add lean mass and then be in a good position to then cut for a contest. You could use tren for this next cycle if you like, but another option, would be to save the tren for the actual prep. I find that I get a better response from a compound, if I don't use it in every cycle. So dosing and cycle, lay out, based off your histroy, you should be able to make some serious gains doing something like this. Or if you really want to use tren, replace the NPP with it
1-12 or 16
500mg Test EW
400mg EQ EW
.5mg adex EOD
1-8
50-75mg NPP EOD