i just got a concert lead, the grey kind with 2 channels dst./rvrb. everything seems to be in working order. it has the rca footswitch connectors. i tried using an adapter 1/4" to rca with a fender footswitch, but it had no effect. i've seen someone posting on here saying they sometimes had footswitches for sale, are you still around, or does anyone know of other brands of footswitches that would work with it? also, is there a way of making one of the sunn a/b/both swithces work with the concert lead somehow? thanks, sorry if i'm repeating ?s