Mark,
I think we should find out from whoever set up these divisions what their reasoning was. Some people have obviously done considerable work on this.

Personally, I agree that it is very confusing if the divisions are all different for US Sailing, for the Hobie Class, and for NAMSA. And then, of course, there are also the divisions we use for the regatta schedules in Catamaran Sailor magazine and on the catsailor.com website.

I do think that the Area divisions that work for US Sailing do not necessarily work well for the beach cats, because the US Sailing network is based upon yacht clubs and Regional Sailing Associations (RSA's) of affiliated yacht clubs, all of which relate to their ladder programs to get to various US Sailing Championships.

Multihulls are mostly not affiliated with yacht clubs, so maybe we need a different geographical layout. I don't know.

Anyway, Rick just saw this for the first time yesterday and posted it to get feedback.