I really don't know about the legality of it all. But the Turser guitars have been out for a long time. I'd be shocked if Music Man hasn't known about them for years.
The first "knock off" I ever saw was a Chinese or Korean copy way back when EVH's were still in production. It's nothing new. And I wouldn't be surprised if those copies motivated the OLP line. But I don't know that either.
LOL! I love that! We should start making knock offs of Chinese-designed models.... HAHAHAHA!!!
When Bill and I were in Shanghai, we got so fed up with people trying to sell us watches that we started trying to sell them OUR watches -- they were shocked, I don't think they knew what to say.