My wife's been complaining about her sled having to rev to about 4k rpm's to get her sled moving, it has a 160/260 (violet/green) spring in the primary, would changing to a 130/260 (blue/green) drop it without affecting the backend much, or would going to a 130/230 (blue/yellow) spring be a better choice? She's not into big climbs or jumps, she prefers playing in the deep stuff and some small hills.