Giving pawns 2 * neighboring pawns in attack strength gives them enough power to take on anything if clumped together. Pawns should be important, but no individual pawn should have 6 attack strength. It totally changed the test game I was playing with the new rules.
I will put up that game for later, but my new rule for pawn attack strength is: neighboring pawns + 1. Defense strength will still be neighbors + 2. This still gives two pawns with two neighbors each a combined attack strength of 6.