I can't help with the pins etc. To truly measure if the watch is running a lower power level I had an avo connected between the battery and the watch. I could then observe if the current consumption was dropping or not. Gordon might have a B2 with a cracked screen but a functioning GPS that he could maybe send out for tests.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
I can't help with the pins etc. To truly measure if the watch is running a lower power level I had an avo connected between the battery and the watch. I could then observe if the current consumption was dropping or not. Gordon might have a B2 with a cracked screen but a functioning GPS that he could maybe send out for tests.