Good info! We may have been using a straight bit at the time, not certain though. My wife has been commanding the x-carve and I’m not certain what she was using. We may have just have some bad luck with the plywood we used, however it seemed that smaller sections of wood (where the width would get below 1/2") were just too fragile and would crack and/or break in multiple sections. I see people use 1/4" plywood all the time though and they’re successful with it, so clearly we’re doing something wrong on our end or using the wrong bit.