yes snowmachines can put ruts in trails but it takes alot more effort to do so. If some idiots is brapping his way down the trail it will make little mounds that turn into bigger bumps we know this. But when a snowmachine drives a consistent 10mph paddle tracks or not i do not think it can destroy a trail as much as a SxS can at 10mph. Snowmachines are ment to float on the snow SxS are not unless they have tracks on them (why do you think they started putting tracks on them to begin with). My point is that as soon as the SxS starts to bog or dig in (which it will on the trail unless the snow is wedding richard hard) you have to punch the gas and get out of it unlike a sled on a groomed trail. Thats why i think SxS can put more damage on a softer groomed snowmachine trail and thats just like my opinion man.