B2SO ... I went with a 1.25 ripsaw, since I still we be riding some trails.
Bluerider ... 144 mountian performance with a flat rear exchange.
SlowSRX ... I haven't noticed too much of a ride change. They say it will be softer with a longer track, but I was happy with the ride before the extension.
Jeff ... parents sleds are really nice, we only got to ride for a little bit. I still have your loops and I should be back in michigan this week. I can bring them to Six Lakes this weekend or just put in them in the back of my old sled or Gene's sled and you can get them when your parents buy the sleds.