Hey bro, sounds like you have a fair amount of personal experince and not only know how things "feel" but look at lab work. If you can run orals for longer, more power too you. While on, also check your cholesterol values and see whats happening to your HDL. Take this into account when you decide to add an oral or not. As for the estrogen control, personally, if the arom works for you, I would try to stick with that through the cycle. I've heard of nolvadex stimulating proges while on deca, so I would shy away if possible. Personally, I never use Nolva on cycle nor do I suggest it to the guys I work with, so I have not seen an actual reaction between nolva and deca, but regardless, if the AI works, I'm much rather keep it simple and elimiate as many variables as possible. Also, there is going to be some overlap in week 11 and 12, maybe 13, where the deca is still at high levels while you introduce tren. This is a lot of 19 Nor at once. Personally, I am not a big deca fan, so I haven't had any expereince combining tren with deca, so these weeks might also pose an issue. Just look out for that and be aware that you might need some extra caber in that period