For all the guys that still run older boats and still have PerfectPass, I just upgraded to the stargazer gps edition and was worried about the speed being off on the river we boat on. I combed through the internet for months looking for an answer to this. I want to save you guys some trouble if you're still thinking about upgrading but worried about the gps. The stargazer has a river mode software that will let you disable the gps and just rely on the good old paddle wheel again.

I could have saved myself a lot of trouble by just calling perfectpass and asking, I hate phone calls though! Also, I know we've all heard it before, but pp customer service is unrivaled. I worked with Mark and it was an easy upgrade. He was very knowledgeable about the product and recommended river mode for my application.