has anybody tried the130,or 160-350 spring in their xp.i currently have the 200-320 spring in my sled and have removed the pins and still am not totally happy with the rpm it is pulling .(8000-8200 on tach but flaring up and down).running a 130-290 in my 08 and not having the flares.if this is what doo's giving us stock, i am thinking it is making less power than last year. and why would they give us a spring with that high engagement in a mountain sled.spring sales must be down!