Stu,
I never did order the balancing kit though I plan on doing so. I've been on a pen making kick and have been investing in kits, trimmers, a press, 60 degree live center, a set of Rex and Kip turning tools, etc... These two bowls are the first I've turned in a while so I really haven't needed the grinder as I sharpen my pen tools via Scary Sharp. i do believe that I do have an issue as it just simply bounces more than I think it should as I'm sharpening.