I was surprised that to see that a forum search of "preload" only found one post which didn't generate much response. I expected to see some significant discussions regarding preferred preload settings. When I asked the dealer service manager about preload he said he liked to ride stiff and set it at 12. I pushed it up to 17 yesterday while riding two-up but didn't notice a difference. What should I feel? I would love to see a discussion regarding how the preload affects a GL1800, what settings you use for what purposes and at what weights.