I've been getting in the process to switching from Modul8 to a Arena / APC40 combo. Most things are going well once you get used to Arenas various UI shortcomings (can't layers and rows of clips be seperate?).
For those using an APC40 - how are you dealing with each layer causing having a separate midi channel? It gives you so many per layer controls but only a few buttons & a knob that be used across any layer on the controller?
I'm contemplating using to OSCulator or BOMES to tell them to accept buttons from any note - as long as its the same value otherwise.