Kring Yes i know that i can do that, in fact that is what i end doing. However that has a lot of problems.
1) lose automation using SGP
2) lose end of carrier demarcations (to avoid forcing the mirror screw and motor)
3) as mentioned before, lot of trouble switching between f/x / hyperstar and visual, when with other focusers i just have a table with the estimated focus position for all of them.