Personally, I think you just have to decide the best tactics for your team. I've enjoyed seeing the challenging mobs.
I guess we have one of the stronger Main Teams in the competition, and yet we still weren't able to cope comfortably on the uber Hogs, despite the entire Main 4 being in either Shadow or Supremacy irc. Having practiced them earlier we expected that, so we just got one Alpha and got outta there.
At this point we don't know what the spawns will be like, and whether we'll be able to effectively camp Malcs or not. If we can't, we'll just go to the Hisps or Scabs and let the other teams make mistakes with the Malcs. I wouldn't even write off blasting ambus as a viable tactic, it really depends how the spawn adjustments work out.