The Legos analogy is a great one. Thank you for using it.
I've been putting off typing up a response to this, as I wasn't sure how to word it, plus I also wanted to keep chugging along with the MB1 summaries I'm typing up. (I did, however, briefly speak with Chaos about it over Google Chat recently, so I haven't been completely silent on the matter.)
The "stacked blue and red Legos" is pretty much what I was going for, how things are "now". And the other 14 could also be stacked, too, in theory. (Okay, the 12 other 4-peg blocks, and the other 2- or 1-peg blocks that are left over on Sel.)
Thank you, Mad_Scientist, for helping me clear this up.
(Though I have to admit, I'm still sad nobody commented on the Beatles reference. :-/ )