I'm looking at upgrading my Kestrel DAS-6 and was wondering if any forum members had experience of the Flex XC3401 VRG Positive Drive machine? There's seems to be a limited list of UK suppliers with the cheapest price I can find being £375.00 however I can source one from a German E-bay merchant for approximately £276.00 incl delivery which is tempting. If anyone has used one I'd be keen to hear how it compares to the PC/UDM/G220 as well as a rotary machine? Would the upgrade be worthwhile or would I be better sticking with the Kestrel until I learn how to properly use a rotary? Thanks in advance.