I bought the kit from Losmandy because I felt things would go smoother. I did the upgrade and had no troubles. I printed out the instructions (13pages) and checked them off as I went. I have only used my scope indoors to test since updating . Weather in NC has not been cooperating. But everything seems to be working well. I have a GM811 also. Love it! I sent my kit back and got a 30.00 refund on the price. That helps Losmandy to repackage it and get out to other Losmandy owners to update.?
Greg Morris Vanceboro NC.
Greg