These are a few knuckleball grips The key is to remember that there is not only one grip that works But these are proven grips from professional pitchers The three finger one is from Kenny Serwa he is in AA right now with the tigers and doing well, famous for the hardest knuckleball A lot of the principles are the same regardless of the grip The biggest key is making sure that you have security of the Baseball with the thumb and ringing finger and or pinky. And allow allowing your top fingers to