Hello again! I've got the logs you guys sent in checked and analyzed, and I'm about 80% sure that simC is modeling trinkets right. As thanks to those of you who sent in logs, here is a more expanded DW list with more up to date and accurate numbers.
Still using my lazy unreforged profiles, with both T16 bonuses, legendary cape, and legendary meta gem. Each profile still only runs one trinket, I'll get to doubles when I'm 99% sure everything is being modeled right. WF = warforged, H = heroic, and TF = thunderforged. The 2 at the end means they are all upgraded 2/2. For round 3, I'll include every ilevel of every trinket (still singles) so that you can pick the best trinkets to go into 5.4 with, but it looks like feather/rage (if you have a HTF), with shadopan as an easy to get backup. These profiles assume you can use 100% of the hit/expertise and reforge it into mastery, so feather/shadopan will drop if that isn't the case.
Thanks again to everyone who sent in logs, and keep sending them in!