Hi Gary,
I went for the robo as i saw one on a FSQ106 at the SPSP and the owner claimed he could get good focus in 30 seconds, also i dont have to remove the original focuser. The price is not bad as well.
The tv85 is pretty clean but there are some screws holding the rack and pinion so i can probably mount a bracket there. I can get decent focus at the moment but the problem is i never know if i have best focus. If this unit gives me consistant reasonable results then I will be very happy indeed.
Anyway I have paid for it so it should be here next week
Paul