Next week some time, hopefully. I don't have any of the material for Jergpads lying around so have to get ... hmm, let me try to remember. Tiny sewing scissors (or maybe nail scissors with a curved end), electrical tape, superglue, velour fabric, double-sided tape, thin nylon (low denier tights?) and possibly a needle and thread to attach the velour covering rather than using tape.
I'm also tempted to measure the difference before/after the regrilling mod, but I'm quite apprehensive of that modification in terms of exposing my driver and also affecting my warranty.