Ah yep. I was mixing things up a bit. The one that surprised me was that, in some cases: Large + small + small + small =! small + small + small + = Lar

Ah yep. I was mixing things up a bit. The one that surprised me was that, in some cases: Large + small + small + small =! small + small + small + = Large Which is indeed associativity. Really underscores how complex things are.