Does anyone play any Mesa cabs? I currently play an Ampeg 810e through an Ampeg B2R-E head. I'm looking to switch over to a 12 inch speaker setup and Mesa looks like they make a couple of pretty solid cab models that fit what I am looking for. Anyone know how well they hold up to Ampeg? I'm on the road 2-3 months out of the year so roadworthiness is i big factor with me as well.