I too, am about 180 lbs and I have both the B17 (on the majority of my bikes) and one Champion Flyer on my townie (a converted Panasonic DX4000). I prefer the unsprung B17 for most riding even short rides. I like the Flyer but it still doesn't feel as comfortable to me as the regular old B17 and my Flyer is pushing 15 years old so it is fairly broken in. Tough saddle though; I had it originally on my mountain bike and it has survived a lot of crashes. Frankly I get better suspension with fatter tires.