Hi Brian,
I know that I haven't been contributing to this debate as I ought to, but unfortunately the pressures on one's time do not seem to be easing as the days pass.
I note with interest that most are opting for non-weighted centreboards. Does everyone know that the M has about 100kgs of permanent ballast already, I wonder? Ultimately, your poll and commentry that folks will provide to your other submissions will help to frame guidelines that are consistent with the thoughts of the majority. This is how it should be. Personally, I hold the view that the variegated nature of the primary models, the numerous sub-models, and the outright inconsistency of the weight, shape, and not to mention owner's mods, is working very much against nailing down any sort of meaningful CBH. None-the-less full credit to your efforts.
I would disagree on one thing though. Whilst it is certainly true that the outcome of the exercise is to establish an Australian Association, I reckon that you ought to not only welcome input from the great mass of experienced users in the US and Canada (no poms though

), but that you ought to actively solicit it. We know that the bigger the sample, the more accurate the statistic, right? Not only that, but there is an absolute bonanza of owners in this place that are both knowledgeable and talented in the fine art of making one of these fat buggers go. Delevi, Scott, the dealers (when they aren't throwing metaphhoric rocks at each other) Frank C, and many, many others here have got real insights into the boat that would be extremely valuable to the outcome of your efforts. Just a thought.