I sent my 940's in to get the lighter springs installed. Today they showed up and much nicer ride with the lighter springs. The also replaced the bushings and said that they replaced the spring guide with an updated spring guide whatever that is. Not only does it ride much better ( I now have some sag) it looks much better as the new springs are black instead of gray and it cost only the shipping one way ~$11 in a flat rate box and nothing else. very fast turn around as they called me the day after they recieved them to tell me they were finished and that they were headed back.