With my Maxx yesterday I used my SD 302, but is to heavy. The VCP M2 seems to be ok, but under my point of view, I believe that a great box should also have a headphone output , the pfl and a return where to connect the headphone output of the Maxx, or 633 or nomad, in this manner we can listen the out of our recorder, the out of the premplifier and the pfl of extra input.
This is what I made Yesterday with my 302...
Zaxcom please try think something for us...
sorry for my English...