For anyone elae that is trying to use fit2fit it appears to break adventure sync.

I wasn't able to get AS to push ANY data until I both unconnected and uninstalled fit2fit. Now it's talking at least (still badly short changing on steps, though it looks like it is pushing kms)

Google fit is sadly awful. I'm missing 2/3rd of my daily steps / mileage despite having my phone in my pocket all day and for some reason the mileage calculation seems to be based only on GPS data and not steps/stride. Since it means the GPS is running constantly in the BG It's also sucking the life out of my battery. I'm not sure the way this is set up that it's that much use over just keeping pogo open in the background.