QEV's are a waste of time. The Halo with a Victory board is the fastest feeding hopper, and it feeds 35 constant. And the problem with QWV's is that most aftermarket RAMs can cycle that fast, or at 40 with out the help of QEVs.
Now i would say that you get a Halo because you have a pretty looking Black Magic thats E-Bladed with an ok front...and yet u happen to shoot a revvi...i should smack you. Put the damn thing to use.lol.
Im also oblivious to the type of internals on Black Magic cockers. As far as I know, WGP doesnt have any aftermarket ones, so I would also recomend an Eclipse or FF valve and hammer. Both of their performance capabilites are debatable as to which is better, but it seems like they are aboot equal.
You got 2 QEV's? or 1 QEV? becuase your large sig tells me you have STO pneumatics, which would lead me to beleave you have an STO ram, which can only use one QEV. Or are the useing TRV's? Just a question.
So, get a good inline, like the CP (COLD) or the Palmers. Or you could buy a barrel kit, Ex. Kaner, Freak, Pipe, Poision Arrow, and so on.