When I have skiers try the new 24 Vapor, I have them take a set at the factory short/deep settings and then have them ski a second set with the long/shallow settings. The goal here is to find the set up that feels better to them. Once they choose which factory set up they prefer, the next goal is to find the ideal boot placement. I disagree with Horton as I do not believe the 24 Vapor is highly boot placement sensitive, rather that skiers tend to set their boots to factory and then just get hyper focused on fin settings. So I recommend NOT touching the fin once you have done the short/deep vs long/shallow experiment until you find your ideal boot placement. Start at factory boot location for the set up you chose and then try moving the boots forward. If it feels better, try going further forward until it feels worse and go back to the location that felt the best. If boots forward feels worse on your first try, then try going back with the boots. If back with the boots feels better, try going back further until it feels worse and find where it feels best to you. Once you find your favorite boot location, then you can adjust the fin if necessary. Boot placement is the MACRO adjustment and fin settings are the MICRO. We spend countless hours finding the factory set ups so in most instances, they will be the go to set ups, but we are all structurally different and utilize different techniques to accomplish our skiing goals so this is the way I go about finding the ideal individuals set up.