On a number of knives, there is a cut out in front of the guard (I believe it is commonly called the choil) for your index finger when you want to choke up on the knife. Two that come to mind are Randalls and Swamprats. On smaller knives, say blades under 4 ½, do you find this feature useful or just unnecessary? I would rather have a knife that has almost all 4 ½ of edge, than to have a 5 blade, but only 4 of edge. What do you guys think.