I have the Hyper pro front springs. Went from the OE to Racetech & then to the Hyper pro. For me they work very well. My main concern for changing springs was to get rid of the harsh ride & still have control in the twisties. The Hyper Pro front springs did that for me. :thumbup:
I have the Hyper pro combo pak but still have not installed the rear spring. I love the ride and the new ride height I get from the front shocks and new springs. I forget where but there was a very good write up in one of the gold wing magazines on the hyperpro product.