preizzo, can you get into more detail about the jck combo stone?
if the shapton glass 1k was thicker and had slightly more speed, it would be great stone.
i already have cho400 (love that stone). i need closer to 1k scratch pattern because i finish a lot of my edges on it. (petty, suji, beaters)
believe me i've tried jumping from cho400 to my finisher (jnat 3-4k) and it takes too long.