You are so very right. Didn't read that post correctly.
I'm not sure there is a larger sprocket available to slow that SC down?
I guess smaller tires are an option. I'm not sure if anyone has tried a SC geared tractor with S rear tires'
I can tell you I have not noticed any loss in power with speeding mine up. Those greenies drop down on steep hills and I just cruise along. I have never had to shift down even at 7-8 MPH in 4th on the steepest hill