Got a couple of these from ebay and fitted them to-day
to save mixing up lables and info to be logged on line,I done one at a time.Problem was
first one was fitted to the carbon frame,this was a bit loose and had to be adjusted to
make tighter,then 1/2 an inch had to be cut off the seatpost(it's a hellova length any way)
as the device will not go past the cage bolt fittings in the seat tube.
On the second one,to be fitted to the alloy frame,yup,it was tighter and needed to be cut
to fit,but both are now fitted and all info,descriptions of bikes,frames,groupsets,frame numbers
and numbers from the frame labels provided with the devices.
Will upload some pictures soon when young blonde(daughter) shows me how to work this wizardry.