I have had some questions regarding handle lengths on singlehanded rods converted to doublehanded mode and the effect on casting. I stated in another thread here in the Trout Spey Forum that, because of my casting style, I don't find it necessary to add any length onto the upper/front grip when converting singles to doubles. The reason for this "approach" has to do with the "power" of the conversion rods. The "strongest" conversion I have is a 9' 8 weight with which I cast a 250 grain Skagit belly. The rest of my conversions are even lighter in line rating - 3 weight to 7 weight - thus casting even lighter bellies - 150 grains to 225 grains. I have found that it doesn't take much "power" to cast lines of this weight and that in fact these light line/rod combos are very, very easily "overpowered". Instead, a more effective means to cast these light rod/line combos is through the implementation of faster line speed. Faster line speed is produced via faster rod tip speed. I have found that as regards using a two-handed grip, faster rod tip travel is obtained by placing the hands closer together (conversely, a wider grip produces more "power") and using a lower hand "pull", upper hand "push" pivot-type action during the forward casting stroke. Therefore, as regards lighter rod/line combos - 250 grains and under - a very "close" hand grip is the most effective and therefore no additional length is needed on the upper/front grip. In fact, it seems more important to make sure that the bottom/lower grip is of a sufficient size for establishing a firm and positive grip.