Posted this over on the current trat.net thread, and thought I'd cross post to here. I noticed on BellaCorse that Mike sells the IKON with black springs for $320. Price wise that's in between the 412s and 440s. Their performance also seems to indicate that their between the Progressives: "4 Position Externally Adjustable Rebound Dampening, 3 Position Spring Preload Adjustment, Progressive Rate Springs in Black or Chrome."
The 412s have 5 positon preload adjustment, but don't have any rebound dampening adjustment. The 440 series has a threaded preload adjustment for fine tuning, and has the IAS system that controls the dampening of the wheel and chassis independently from each other(well, at least according to the Progressive website hype).
Hmm, decisions decisions.
