Crew is right I have been monitoring the four stroke side of the sight much more frequently and due to the time of the season I have been extremely busy at the shop lately so I really haven't even had time to browse any of the forums lately. As far as hyfax for you sled goes take a look at the following two links to our website. The part numbers you are looking for are SMA-8ES92-00-HP ($17.96 each) for the graphite ones or SMA-8ES92-00-BK ($11.66 each) for the standard ones.