I originally typed a long winded response that did not post, so the qoute above was my quick repsonse out of frustration. I figure after you took the time to mail me a spring free of charge I should atleast give some feed back..
Ok, to the point, The spring change takes literally 2 minutes, I believe I recieved the H-spring? IMO, it could be even stronger but it is still a improvement over stock. The day I switched the spring I was towing the goosneck on a tow tune and the throttle controll was much improved, The next day I bumped the power back up to the 350 tune and the throttle response once again was improved but still to touchy for my liking. I dont forsee anyone complaining about the 'h' spring being to strong even if they freeway drive 90% of the time.. Thanks again...