best goto upgrade?

[rowan46]

Which is the best goto upgrade for a vixen gp2. synta sysnscan? Vixen starbook s? or ioptron goto nova? I want to use it for a light imaging setup.

[E621Keith]

Don't go for the Starbook S. It's GOTO accuracy is poor and sometimes it performs completely random movement for absolutely no reason. The illuminated back light is night vision destroying green and it connects to a PC via Ethernet. The only planetarium support is some Japanese program and it is not ASCOM compatible. Vixen makes good mount, but poor mount electronics.