Can you? Yes.
Should you? Well, seeing as how it is ABSOLUTELY MEANINGLESS to put a pin in a position when you have no idea of your pap, and just as meaningless to place an mb, I'd say you'd be better off just closing your eyes and sticking holes wherever they may fall (am I being too harsh with them? I just so wish I could be as polite in my answers as some other users yet get my point across).
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stanski