We are thinking of upgrading to new sleds. I have been looking at Skidoo Everest 800R as well as it's little brother the 600 ETEC. How is the 800 Skidoo doing as far as motor reliability? I have heard the horror stories about the Polaris 800 so don't want to touch them. Is the Skidoo 800 faring any better? We keep our sleds for a long time so reliability is a key issue for me.