I swear Darris developed the 200XS SS for the Allison SS, GS, and 20' XB's. If I remember correctly, an Allison was on the Merc brochure for the 200XS. It's a great motor, guess it was ahead of it's time, because now all the guys moaning aboot 4 strokes are basically describing the 200XS as what they wish Merc still made. But it didn't sell very well during it's run.

If you can get your hands on one of Hydromotives "knob cut" choppers, give it a try. It was so smooth and consistent on my XB2002, was my favorite wheel.