Not to be hard on poor little Mac, but to be frank, Charlie Brown's head seems to be more in proportion to his body, while Mac....um, doesn't exactly enjoy that same luxury.
And what do you mean we're getting fearfully off-topic? If anything, this is exactly the kind of issue we need to deal with here. For example, this quote from chapter ninteen of "More Than My Friend/Falling Apart":
Immediately the boy snuggled contentedly into her embrace, throwing his arms around her and nestling his head inside the crook of the girl?s neck
Now that I read over that, I wonder; how on earth is Mac's head going to fit in there? Is Frankie's neck long enough to accomodate it?
Maybe........
Then again, maybe it's not that big of a problem. Or at least the hugging issue isn't that bad, seeing that Frankie has some experience holding creatures with oversized heads:
Let's be honest, Cheese's head-to-body ratio is grossly disproportionate. But if Frankie can handle that, as seen here, maybe simply giving Mac a hug isn't a big a challenge as we originally though it to be.