Ergon's almost in a class of its own, especially with the "S" or small grips. I tried Ergotec grips, but they were too fat between the thumb and forefinger, as compared to the slimmer Ergons. I much prefer the GP 4 to the GP 3, as it has a much nicer hand presence and less curvature; the GP 3 ends can feel a little small at times and you can't lay your thumbs flat on the top like you can with the GP 4s.