All I can say is wow. The split rail skis turned my sled into an unbelievable rocket. It handles better than I could have ever imagined. I found a used set on craigslist from a guy selling his Nytro. He was selling the sled with them on but the guy buying the sled didnt want them. Lucky for me. I have done quite a few mods to my Nytro and this was by far the best one. I have just purchased another Nytro for my son and will be ordering another set. He would not ride my Nytro before I put these skis on it. He loved the Apex. After one ride he was conviced he needed a Nytro. After he kept stealing the keys I decided to trade in the old Apex on a xtx. Probably the luckiest 13 year old in school. I just want to say thank you for creating such a great product.