I've used a CalSci XL (I'm 6'2") and loved it. I broke it in a minor accident and am now buying another. Wind noise was, for me, virtually nil and no buffeting. I assume you've followed the directions on the site to do the yardstick method of measuring? There are also instructions on the site for drilling your own holes (drill speed, bit type, etc.).
Now that I think about it, I thought they said you could contact them about setting up a "custom" shield, too but I'm not 100% on that.