I've been playing with my bike for a couple of days off and on. Still only has 10 miles on it (raining lots lately)
I have an "early September" bike (actually delivered Oct 1) with limited options for changing computer settings.
I think I've settled on
P8 = 50
P11 = 1
P12 = 1
So far I've had no desire to change any of the settings that I can not change. Battery cutoff voltage is set (and locked) to 40v. That might be a little low if I actually thought I'd let the bike drain the battery very often. More likely I'll try to get home with a few bars remaining. In the rare case I might trigger low voltage shutoff, I think I'd like those last few amps more than I would value a few more battery cycles.
I set P11 and P12 both to 1 because I like the boost coming on as soon as possible, but I like that boost to come on gradually. If I want to accelerate faster I use throttle. I don't think I'll ever see 50km/hr (or even 45) except downhills, or if I change chain gear ratios. I think when I get my first flat tire in the rear, I will also switch out the freewheel for one with fewer teeth on small sprocket. So that will be an somewhat expensive flat tire. Who knows it may never happen
And I reserve the right to change my mind
My energy meter changes more than I would like when I have been drawing high current for some time. I assume the "energy meter" is just a volt meter (perhaps smoothed???). I'll have to display volts next time I go out to see if they seem to track each other. I expect battery voltage to drop when high currents are being drawn. But the energy meter only seems to drop (then recover) after 10's of seconds of high draw. To me this is not a good thing. To me it indicates the battery resistance goes up during heavy use (or wires are too small). I like the fact I can monitor battery voltage and current draw in real time. I have no idea if they are accurate, but it is nice to have them.
The geometry of this bike is different than what I used to ride. So it took a little time to get used to it. But so far I'm having fun with it. Which was one of my goals