Ted, I've been aware of perch bellies for a very long time. Fairly common on Italian sxs, for example. And while it's clear that's a different type of STOCK, I don't see that it's a different type of GRIP. Top and bottom lines through the wrist look pretty much parallel to me. So . . . what you have is a straight grip on a perch belly stock.
And while you have to toss out rules of French pronunciation when it comes to proper names, I've never heard of anything with a w being pronounced as if it were a b.
