I just got back from Island Park Idaho. This was the first time I have been out there and it was awesome I plan on going out twice a year from now on. Problem is my shortie isn't enough anymore and I was thinking of extending it to a 136 or 144. Whould you guys use rail extensions or longer rails? What is the biggest lug track I can use with stock drivers 1.5? Any advice you guys can give me would really help me out. Also will a 16 inch wide track fit on my sled?