So after watching Andy McKee's video of Rylynn, and doing the relevant research I needed a capo that only clamps the bottom 4 strings. I started using my Kyser KG6B capo and it did the job quite well, and I think it was the capo that Andy initially used as well. The problem with the kyser, is that its huge, so the giant lever that you use to clamp it can get in the way when moving from above the capo to below the capo. I later found out that Andy is using a Shubb Banjo capo for the job! So I went and got this one. It justs covers the bottom four strings exactly. BUT, obviously being designed for the banjo, it doesn't quite clamp around the neck as snuggly as a normal capo does. This has the effect of uneven pressure across the strings where the pressure is greatest on the 3rd string and lightess on the 6th string. If you don't get it right, the 6th will buzz due to insufficient pressure. It generally works ok, but is a little loose and doesn't clamp all the strings as tightly as the Kyser. One tip is to capo directly over the fret to get as tight a grip as possible.