I realize I could just test them all to see, but do you know off the top of your head, is the hyphen necessary? I know it's not for bitem. Well, I could test the 2 I think I might use...

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Just tested those 2 and you don't need the hyphen, so I'd guess you don't need it for any.

Btw, I don't need a costumicon for that question. I've already got one. And don't worry about the GPs. I'm about to buy more.

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