Beemerman. Following info may be helpful. Have had two new strips fitted by dealer. On both occasions I was told that the new strip had been calibrated for empty but that I needed to fill tank ASAP to complete the calibration
That's correct, which is why my readout is still saying I have a 250 mile range. This should all sort itself out when I refill the tank and take the bike for a ride - I just can't do it until I have the bike back together for other reasons. Its the only thing stopping me from confirming that the process has worked 100% in my case. The dealers use a different tool for recalibrating the strip than I have which is a GS911 but I have no idea of any procedural differences between the two ref filling up afterwards. I can't see that any delay between recalibration and filling the tank would make a difference. If it does I will report back, hopefully this w/end.

