I hated my dice once too. Then I tracked (in casual games) every single die roll. Yes, I had 6 of each die, and didn't track them individually. I just tracked what I rolled each time I rolled dice: Hits/Crits/Focus/Blanks and Evade/Focus/Blanks. The crazy thing I found: Over the course of 20 games or so... my dice were pretty close to average. But then I looked at the number of green dice I rolled to red dice rolled. And I adjusted my flying so I threw more red dice than green dice. I'd suggest tracking your dice. Not only will you find they are probably pretty average (and if not, buy a new pack!), but you will probably see the same results I did.
And try HotAC. Its wicked fun!