I apologize for lack of clarity, causing you to have to re-invent this theory.

Al (Also running TWM TB) 

That's now the old theory Al.  The latest theory is that you and I are just kidding ourselves, and the restriction is real.  I just wish people like Bill and Bernie would have the decency to lie to me about their readings :-)  

You all know that I'm going to have to make a new intake to prove this (damit).  

Cheers,

Rusty (guess what I just bought)