For anyone else using the SM 2.0 with the 200 watt CNC and bracing kit: I was able to get great results while going much faster by using 1/4 inch bits rather than the included 1/8th inch (had to order a 1/4 inch ER11 collet from Amazon). With 0.5mm and 1/32" diameter tapered ball ends, I was able to get up to about 68 in/min (single-pass, full 1/8" depth, roughing pass unnecessary) before the quality dropped off on some bamboo cutting boards. Time was maybe 1.5 hours.
Also, Charlie, I emailed you a bug report with some SVG attachments but hadn't heard back yet so I am concerned it may have gone to your spam folder. Please let me know if you didn't get it. Thanks!