I did some testing with the Fuma chest/Melee pants and Melee chest/Allagan pants to satisfy my curiosity as well (I have no luck in the months of running Coil so I don't have a lot of BiS pieces). So in my current gear setup swapping between those two combinations my maximum DPS was almost the same. However, between different parses and with the range of DPS I'd get the Melee chest/Allagan pants were closer to the maximum I'd get more consistently. Parses generally around 4 minutes until I start to run dry on TP.

With that being said for others I'd recommend getting the Fuma chest/Melee pants because the difference is so nominal and it'll help your pool of myth to play with unless you are just in dire need of accuracy. I'm sure there's other out there like me that have run Coil for a good long while and almost never see monk loot.