I always buff all my knives the same and get amazing results. I use 2 different grits of diamond compound on hard felt wheels followed by some pink scratchles on loose muslin. so anyway the prob is stabalized redwood. all other stabalized woods are fine, polish to a mirror, but redwood collects the buffing compound and turns it gray? I ran in to this before and just wet sanded to 2000 and called it good. what do you guys use on redwood?