I chose the Edge Amp'd 2.0. works very well, with the Procal and with out. Also allows for adjustment to be made to 3 of the throttle curves via the app. super easy install and allows for on the fly throttle curves from the app and bluetooth button
I ended up using a m3 but I installed nutzert when I built mine. I was afraid I over engendered my solution. But with you doing that I feel better that I chose wisely. Will actually install everything this weekend and see who it works out. Thanks for the feedback