Sorry for going a bit OT, but Billy, what are those Touratech "clamps" on either side of the nav? I've not seen that before EDIT: answering my own question, it's a lockable mount: https://www.touratech-uk.co.uk/handlebar-mount-for-garmin-zumo-xt-lockable-black.html
The Touratech locking mount looks a bit OTT, in my opinion. I fitted a Zumolocks lock to my XT which is much lighter and more discreet.