Get a team set up to handle the comments as they come in, and produce responses and get feedback from the balloters. Don't bend over backwards to accomodate some one who is obviously at odds with the consensus of the group. You can go to RevCom with unresolved negative comments, as long as the WG has responded to the comment and recirculated it. It is a very good idea to diligently track the status of comments from negative balloters. In other words, don't wait for and don't count on the recirc process.
People forget to send in recirc ballots all the time.
RevCom will accept email from the balloters, or signed pieces of paper. Some of them will be old pros, and some will be total novices. During 802.3z I produced a FAQ that helped guide people through the maze. The 802 Rules don't specify a recirculation duration. This seems problematic for several reasons.