No, Al did not build them, but he did desing them. As such he deserves the praise for the great job that he did on them. I built them from his posted design on the ALK web site.
So when I say thank you AL, it is for the work he has done, and the fact that he was willing to share it with all of us.
As for the midrange, it is very much in balance with the highs. As we all know, the bass is not that extended on the Herey, so what I did as use a Marchand XM9 xover set at 80Hz. The Heresy's, as well as my hot rod ST-70 really like this, and I use SS on the sub, where it can do what it does best.