Looking at buying two new Polaris Turbo IQ LX sleds. They are 2011 sleds still in the crate. Wondering if there is anything out there that we want to know about these sled. I already have polaris so that is not the problem. They are the 4 stroke motors. We are being told that we should be able run at least 10,000 miles on them with no problems. Just wondering what might stop us from buying them?