Most of our guys use the fixed tiller extentions from AHPC. Yes, they are a pain in the but, but we havent found anything, regardless of cost, that works as well. I cursed mine for three years until I finally broke it. I tried some alternatives but in the end I couldn't wait to get another fixed extention, been happy ever since. I even put one on my F-16 when I got it. Good luck in your quest. Ed