Reply with pleasure Mr.Grant .So that I have a few months in this great hobby of diy speakers I have several design 4 of Bill's (1) autotuba waiting driver(2) tlahs semi-finished (3) T24 stage assamble (4) Adire free design only drivers as a Tuba 36 usambledd with a magnum 15 LF specs driver the kilomax and a build me if you can DR250 .Regarding to the Wayne designs nope still.. just today bougth the alpha 12 and the psd 2002 but Im changing my mind to g0 15 inch alpha .