I didn't expect the Syntas to be upto scratch compared to the Vixen mounts. What caused me some concern was reading about some of the mechanical problems some Vixen owners had faced with their mounts and the shoddy deal they got off the Vixen customer service.
It seems the AXD also uses its version of the starbook to autoguide as well. Whether it's any better than the previous versions of the controller, I don't know as I've not seen any objective reviews done on the system, yet. It would be interesting to see if Vixen have solved their problems for their bigger mounts.
I'll be interested to see how the NexSXD goes in your mounts and how performs. Reason why is I'd like to grab a Vixen AX103S refractor in the future sometime, and I wouldn't mind mating it with a Vixen mount, considering their normal build quality and reliability. Although, if need be I'd get an EQ6...cheaper, I suppose
