The IMA switch works perfectly! On my way to work and back I tested some of the advantage and disadventage of the switch. I could stop a background charging anytime, enable assist when I want and disable it when not necessary. It does in fact deactivate lean burn when you flip the switch while in lean operation. The SIL (shift indicator light) doesn't work but the DC-DC converter works fine. I can even start in gear, thought this is not something you want to happen :O.
here some pictures of the installation :
The final result is pretty stock looking IMO. This switch is definitely a great modification for the Insight, I love it
.