If you're a large infringer and will likely have to sign a license, why not buy PTSC shares now, and forget challenging or trying to litigate. Let the appreciation in PTSC shares generated by your license announcement help pay for your license! In fact, pay $30M and INSIST that the PR include the value that you paid!
No legal costs, you're done with the MMP battles, and you've got a leg up on your competitors. That's known as a WIN-WIN!
The only smarter thing you can do is to become a Steelers Fan!