The thought of a 3000 watt MXUS running through the gears on a very short wheelbase recumbent is a bit scary. Better run the throttle through the CA to tame it down a lot, or you will find yourself on your back before you can say goddamn!
Well, I could always put on the LWB boom on if it becomes a problem, but ya, my hope is to have more motor that I need so that I will have an nice quiet DD hub motor with a large stater able to soak a lot of heat when I need to climb a long steep hill when I am able to add little to no pedaling with a cargo trailer in tow. (Maximum about 150 lbs, IIRC around 650 lbs total bike, rider and cargo)
Depending on what is most optimal, I can adjust, but I am reading up and it appears that a higher winding count such as the 4T x 16 (still trying to get more info on this, not as many threads as I thought I would find on motor specs, maybe I just haven't found the right one(s)?) since I will be running as mid-drive, and have a lot of flexibility in my choice of gearing.
This motor will also be running to the N171b NuVinci rear hub which should help mellow out any peakiness, but yes, I have a CA, and I want a smooth throttle, so I think your suggestion sounds good, I'm looking to maximize torque and efficiency while climbing a 10% grade, 2 mile hill at around 20 MPH, I wouldn't care if I went any faster than that on the flat.
I'm looking to make as durable and bullet proof set-up as I can, and eventually use this with a bicycle courier business, however with all the hills around here, I will probably end up with either a 48v 40AH of LiFePo4 Prismatics, or if higher voltage makes more sense, something like 60 - 74V of Li-Ion (18650?) 3C + with 30 ish AH.
Weight is not really a concern as I will have plenty of space on the cargo bike, and let me post a better pic, I posted an older pic of my Vision R-40 so I could design the motor mount easier, here is a pic of the bike currently with paniers and tail box:
Anyhow, off to the shop! Thanks again for any and all advice/info/comments!