No, no, this isn't about the accuracy of the Heavy's voice. I think it sounds fine. This isn't the subject at hand, so, moving on...
I'm curious about this speaking as a former (amateur) voice actor for some semi-famous flash movies back in the day - I remember reading a whole bunch of previews about how great lengths were taken to try and make the conversations and relationships seem natural between the characters, so, I'm actually pretty curious on one point.
Did all four voice actors record their lines at the same time simultaneously at any point, or were they all brought in at varying points individually? Obviously, differing schedules and such can get in the way of that, but it's been something I've been curious about... especially hearing the way Strong Bad's VA goes about doing the dialogue.
Thanks for keeping us up to date on little tidbits here and there all the same, Telltale, I'd been looking forward to playing this since it was first announced.