So the solution
- HUGE thanks to Robin,
Thi set-up that gives me everything I want, one connects:
1. Sky6 PE -> Vixen SkySensor2000-PC
2. MaxPoint -> The Sky Controlled Telescope (NOT SkySensor2000-PC)
3. PEMPro, MaximDL, CDC, Stellarium, etc... -> MaxPoint
So once Robin suggested direct MaxPoint back at the Sky, not at the Hand Controller, it all fell into place!
Throughout this all - as usual,
1. Everyone here and on ASCOM where really helpful
2. Software Bisque never replied to any of my questions - ever
I've at least written to SB as a courtesy to say all is sorted - and suggest they improve their documentation so the next person doesn't have this same issue, arising from confusing documentation to say the least!
Thanks all,
Matthew