Re: the "How long?" question, the answer is "It depends."

Members can improve efficiency by making sure that they provide documentation to support their request (e.g., ITCS-type specs over the years involved for those new model years you want listed) but it's also dependent on what's on the ad hoc committee's agenda, and whether a given request bumps up against any other business under consideration. For example, we've had some specific "please review" items that were waitiing on clarification of procedural questions...

K