One thing that APT is really handy for that I am not sure you can readily do in SGP is an alignment plan. It was dead simple to build a plan to automatically gather an N point alignment model for EQMOD.
"Unpark, move to position, blind sync-solve, move to new position, near sync-solve, move, near sync-solve" etc. In under ten minutes it would motor its way around the sky, shoot, solve and sync a field of points for EQMOD and after that it would land targets pretty much perfectly centered all night.
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