I have the 13.5" Hagon Nitro shocks (max length). The increased ride height is noticable if you're short legged. The handling is improved since trail is reduced. Shock travel is no different than the stockers so you don't increase the swingarm travel at all. What you get is simply taller in the saddle and better cornering clearance (along with faster turn-in). If you go lower than stock the reverse is true. Straight lines are easy since the bike is harder to turn-in due to increased trail. The travel is again unchanged, but you sit closer to terra firma.