I had my fun with them and I'm over it. Although they are big they don't fight as good as a common. Besides that, they are nasty.
My best day was probably 9-10 of them in a couple hours.
I didn't weigh them because they literally fall apart if you touch them so I went with length. I few were 3'.
And I know they don't take flies.....But they do.
Doesn't bother them at all as far I have seen. And I can show you thousands of them.