I had a similar routine on my gotostar system. It gave how much I was out in Alt & Az.
After many many attempts over many many nights (that cost many many hours of observing) to adjust these errors out...I never had any success at all...I gave up. Yet drift align took minutes & was dead accurate.
On that note ...I have never tried polar alignment correction routines on my G11 Gemini because of my previous unsavoury experiences.
Drift align...no problems mate...done in minutes maybe 3/4hr if slow or larger errors!
I suspect these polar align features sound great...but...easier to drift align.
anyway my 2c worth.
