Thanks for all the feedback! I know there is mod for the tunnel/heat exchanger protectors that Port Yamaha sells that is the way to go if studding. Buddy is studding his new '14 xtx, think I will ride mine as is initially and compare to his. I have always studded but cost, weight and chance of throwing stud into exchanger has me rethinking. Also, all my prior skids were the shorties so the traction was needed for the Apex HP. Not so sure with the xtx skid.