My Maverick clutch engagement has been steadily getting rougher. I now have 90 hours on it. Took it to the dealer, they drove it and agreed that, at launch, it has a "jerky" response. They opened it up and told me they could find no wear on belt, or clutch's and had no answer. They had performed the factory recall bolt/washer replacement at 15 hours. I am no mechanic, but do read forum posts frequently. Would changing the secondary spring/helix setting be useful? What should the factory setting be (b1 or a1)? I doubt that they disassembled the secondary to check that. I just want a smooth, low rpm transition when starting to move out. I have no other issues with this machine.