I have a new (to me) Skywatcher AZ EQ6-GT mount. On it, I have mounted a Skywatcher 80ED with a standard Skywatcher 9 x 50 finder converted into a guide scope using a 'finder to C-mount' adaptor. I use a Starlight Xpress Lodestar 2x guide camera screwed directly on the C-mount adaptor.
I've always found that my mount calibration seems to take ages when using a finder/guider (10 minutes +). However, with the new mount it takes so many steps to calibrate that PHD2 runs out of time and calibration fails. If I try it using PHD version 1, calibration is successful, but still takes ages to complete. I am using 3 second exposures and the calibration step size set to the maximum value that the software will allow. I have checked and PHD2 is definitely moving the mount on each step, just not enough.
What am I doing wrong?