I'm afraid to say anything with all of the Muzzy users who answered you. You need to get moving with only 13 days to go. I can get Muzzy's to hit where I aim, but my group size is larger than with other heads, but they're accurate enough to 30 yards. I can't stress it to you enough that you must try every head on a target before hunting with it. It's common to switch heads and arrows until you find a combo that flies OK. I've found that even swapping the trocar tips between heads can help with run out and accuracy problems.

In my opinion, I would recommend that you try Slick Tricks. The way that they are built from a single piece of steel eliminates all of the run out issues that are common with other heads. MeanV has the best price and if you order tonight he'll more than likely ship tomorrow.