I am building an ES.  Until recently, and even now to some degree, there are not that many ES-specific posts.  However, I learn a TON from reading posts about the IV, which shares the ES fuselage.  I learn plenty from 240/320/360/Legacy posts too, since there is a huge amount of commonality in the techniques used in construction.  I would hate to have to open three or more different lists, and would much prefer to simply skip posts I'm not interested in (e.g., hydraulic this or that on the gear; stub wing stuff, etc.)

If the lists are split, I would vote to have a list that posts ALL posts so that someone who wants all posts can go to one list...if that's possible.