hi, i was wondering could someone measure their 1040 for me and tell me the distance from the centre of the mount tab to the bottom edge of the unit, i'm considering upgrading from a 530, have several bikes and really cant be bothered if i'd have to change mounts, including Cervelo Garmin mount, Enve mount and so on...So i suppose i'm looking for the minimum bar to centre of mount measurement the 1040 would fit on, thanks....