i have 180 msps. i really like how they ski, but before buying them, you have to know that its not a turny ski. 25m turning radius does not make short quick turns, but that suits my style of skiing. they work OK on groomers, obviously not as well as something a little narrower though. they held an edge well before i hit rails with them. i have been on my current pair for maybe a month and i cracked an edge in 3 places underfoot, which is my only complaint thus far. durability wise, they arent quite as bombproof as everyone hyped them up to be, but still a very solid ski. they are holding up much better than my 1080s or my brother's troublemakers did. i had an issue earlier this season with another pair of 4frnts and everyone at 4frnt was very helpful with getting me a new pair of skis as quickly as possible. props to 4frnt for making an all around solid product backed by the best customer service i have encountered with any ski company so far. dynastar woulndt warrenty my brother's TMs that were snapped in half and 4frnt gave me a new pair for a bubble in the topsheet.