I have an API Bowhunter from years ago. The shrink plastic that covers the chain degrades easily and the chain isn't rigid, so catches bumps on trees and can be dangerous. By comparison, I LOVE the Summit's 1) carrying strap that meets at the top instead of separate that can slide off the shoulder, 2) blades that can contact the tree in more places for better stability where API may have problems, and most importantly, 3) rigid cable which is lighter and more durable than the API chain's plastic covering, but also 4) lighter weight of the Summit v. the API. But when I look at the Summit Open, I don't see the handles on the seat portion to stiff arm while climbing the tree. Can someone who knows please tell me how hard it is to climb with the Summit Open, and also would it be better just to get the Viper with the footrest? I do bowhunt and have heard mixed reviews on the Viper's front bar being an obstacle for bowshots.