The Phaserunner on my bike is setup with a three position switch, and the controller is configured use the three positions as different configurations or modes.
For a while I've had modes configured as follows:
Mode 1 = Class 2
Mode 2 = Class 3
Mode 3 = Unrestricted
It worked out well, but I found that I had no use for Class 3. The only difference between Class 2 and 3 is that Class 3 allows the pedal assist to work up to 28mph, and the RadMini gearing for the pedals is designed for a comfortable pace at 20mph.
What I decided to do is get rid of the class 3 settings and reconfigure modes 1 and 2, and create an economy mode. As it stands right now, the modes are configured as follows:
Mode 1 = Eco mode (20mph max, class 2 compliant)
Mode 2 = Limited to 28mph, but optimized specifically for cruise control.
Mode 3 = Unrestricted, but power limited to 1800 watts.
This has been working out very well, and on the last group ride, I had plenty of battery AND performance. The really nice thing about the Phaserunner is that you can be in economy mode, using the throttle and pedal assist at the same time, and just flip the mode switch. It transitions smoothly to whatever the new power, PAS, and speed limit setting are, and you don't have to pause or stop pedaling.
Pedal assist is working smoothly, and the only recent adjustment was making power engagement for pedal assist more gradual so it didn't "jump back on the power" too suddenly.
Waterproofing
Well, water resistance, actually. The Phaserunner controller is itself submersible, but those connector sure are not! I went through and did triple sealing of those bulky JST connectors, with shrink wrap tubing on the cable and connector shell, then I made the connection and slid a large piece of tubing to close it up. There are some un-used connectors, and I covered those and sealed the ends. A huge help in this process is a heat gun for the tubing... SO much easier and more effective. Afterwards I got caught in a storm, and rode fast for ten miles in pouring rain. The mode switch on the handlebars got wet and the modes got weird, and I had to hold my hand over the headlight switch which has ZERO water resistance, but the wiring itself handled the storm with flying colors.
Let me know if you have any questions!