Re: what vanes to use
The wrinkling of the vanes that you're experiencing is not a result of the wind during flight, but rather the fact that your vanes are likely to rub against either your left or right hand lower edge or they can be pressed against the lower edge of your Weaver Rails underside during launch.
When not one of these, you can get some vane disruption from constantly passing through your snows Whisker Biscuit. The biscuit is hard on vanes and the arrow shaft will place heavy wear on the bristles of your Whisker Biscuit.
I know many people don't think that changing out there arrow rest is that much of an improvement, but believe me, they are incorrect and it makes a huge difference in wear, performance and accuracy.
With the 2011 Hunting Season already upon us, I wouldn't make any additional changes, but I would suggest this customization as soon as you can afford to take your crossbow out of use for a couple of weeks.