I wonder if it would be possible to install a torque sensor from an adventure two on my adventure one to illuminate the lag? Maybe it would require a software update as well? Any thoughts?
If possible, it probably wouldn't be worth it. The older models might not have the right mounting points and such for the torque sensor hardware, and it might be a different controller as well.
I now have a Level.2, with the torque-sensing that was essentially a $500 upgrade from the cadence sensor version. I don't think it's worth it. Now that I have the torque sensor, I find that I can't get as little assistance as I want. That amount of assistance is not currently adjustable in firmware. It would be an easy firmware fix by Aventon and could even be done through the mobile app alone! I think I'm going to write to them about it.
Put another way, let's say I want to set up the bike only to supplement when I can't maintain 9 mph on my own: I can't do it, except with PAS = 0 and with manual throttle input. Any amount of effort I put into it pretty much takes me up the gears until I'm going 18 mph or over. Either I'm stronger than I think or it's too much assistance on PAS 1. With my cadence-sensored bikes, it was easy: I set the PAS for 9 mph, pedal away at a comfortable 10 mph. When I hit a hill, headwind or just get tired the motor gently engages to keep me moving.
For now, I just go with the flow and go faster or switch between PAS 1 and 0 as needed. I've only got ~45 miles on the bike, after all, so maybe it is a learning curve. I will say that it feels more natural than a cadence sensored bike, and that is important to a lot of people.