^^ without cog belt - charger pretty much works as NA setup... But it won't run like it was a obviously it has new map on it.
When I had my base map done - we live mapped with Mark...he sent me cable and few maps - I've downloaded them onto the ECU, then got new data, Mark adjusted map and emailed me new one...may be Jez an do something similar? Or just send you original map with cable so you can just download it into your ECU and drive your car with original map, with cog belt off until you go back to him for another remap?