RE: Mechanicals heads?
Matt, Certainly there could be situations where extra cutting diameter would help. However, I think those times are more rare than many folks here think. There are bones and deflections to add into the picture. From video that I've seen, deer shot with the big expandables also tend to react more violently to the hit, causing them to run like scalded cats. I'd rather have a deer with a smaller hole stop, look back and then die in a short distance than run on adrenline for another 100 yards.
These are just my personal observations. I don't actually have anything against the rage or other big expandables. I only hope folks don't use them and start getting careless with shot placement. ( I saw the remains of a gut shot deer that was shot with a two-blade rage. It was just as unrecovered (in a timely manner) as it would have been with any other head. I have a trail cam picture of a live deer with an arrow in it that was tipped with a rage broadhead. It was probably less likely to survive with bigger wound... but it was still alive a week later. Bad, bad shot placement. Not the rage's fault at all... but you see what I'm saying)
I'm down to 40lbs now. There's no way I can shoot any mechanical.