I think Brownell's just announced that they are stocking a line of relatively thin (0.600") hard rubber pads. Or you could use a Ruger rifle pad. Or a Winchester 1922 (I think) red pad with the Win markings ground off. It's not at all hard to add 1/2"-3/4". If you like horn, use the horn. I would not consider a lace-on or slip-on pad if I had other options. I have had a couple of short hammer guns fitted with the CSMC thin hard brown pads, and they look like like they belong there. Yours seems to be worthy of horn or ebony.
