Hey Doug. I can provide some of the back story. I am out of the Calgary area(my company is HyperCube Productions), the same area that PK operates in. Myself and Jeremy Bridge were some of the early builders of the lab sub; In fact we were the ones that did the translations in to the metric/18mm drawings. We have long since gone our seprate ways due to disagreements about ethical business practices and are now competitors.
I have never met or conversed with Al Smith.
PK does, as far as I know, produce ths lab 12 (PK-CS212s) for sale and profit. We have come across a number of installs in the calgary area, were these subs were sold to bar owners, as new stock, and were claimed to have been custom designed and built by PK.