Re: Is two Days a week enough?
George, I recall a column Katherine and I collaborated on a few yrs ago on the issue you raise of folks getting their self-worth as people inappropriately conected to their technical abilities on the mat. An easy trap to fall into if you either turn OSemsei into a spiritual demigod to follow or are in a dojo that promotes an us-vs-them, true believer mentality.
Again I tend to agree with Mary that many of us parttimers don't link grading to our contributions to the workings of the dojo; we put in those nontraning hours of effort because we are woven into the fabric of the dojo community.
Having said that...I'd encourage you to find ways to make use of some of the nontechnical talent you have among your members