Dual Instances SGP for Piggy Back Setup

I don't dither. It is not necessary if you use cosmetic correction (PI's term) when processing your images. If you are not familiar with this, it uses your master dark to eliminate all the hot and cold pixels. Works perfectly.
However, if you are doing really wide field imaging and plan to drizzle your data to improve your resolution, you will still need to dither.
The one issue you have to put up with is there is no coordination between the SGP instances so you generally end up with 1 or 2 bad images on the scopes that are not controlling the target selection. One instance does all the mount control, the others just take images. I set up all copies of SGP to image all targets in a set time frame which matches that of the control SGP.