what kinda paint did you use after the mod, mine did the same thing, wood chips alway's sticks to it. i used krylon stove and bbq paint rated for 1200 degrees but it bubbles and eventually flakes off. i switched to the cheapest flat black stuff i could find it was from home hardware a canadian company
but i'm sure you could find an equivalent there. i did three coats and baked it in the oven after each, then did 3 or 4 warm up and cool down cycles cutting a couple small cookies then shutting off letting cool down and repeating. nice looking saw's though, i really like that scrench holder on the kita, gotta get me one of those. pretty inovative on the other one too.