I find myself using a capo more and more on my 12 string. Been using a Kyser, but I'm sure I could do better. Started shopping around and, woh! I thought the G7 was pricey at $40, but then I ran across Elliott capos ($110) and BMF capos ($100), as well as Crary capos ($65-$70). Who knows what else is out there. Do these outperform the others? Is this a gimmick? What are you folks using?