This afternoon I cut 2 inches from the bottom of my fork springs (the tightly wound end) and added 2 inch spacers to increase the spring rate while keeping the stock preload. I filed the spring ends to flatten them some and reinstalled everything. Later when I was cleaning up, I noticed that the very bottom of the spring is a slightly smaller diameter than the rest and obviously I cut that part off so I am just wondering if the bottom of the spring sits on top of the damper rod or if the smaller diameter was there to allow it to fit inside a recess on the damper rod? I hunted the web trying to find a picture but couldn't be sure so I thought I'd ask. The forks feel much better than they were stock, I'm using 15w fork oil also.