has anyone tried these yet? if so what do you think?

Here is a review on them.

http://www.broadheadtests.com/FEATURES2.html

I just read the review. They sound pretty good. I have a question for the more experienced archers. I have read in a couple articles/reviews about straight fletching, left-hand helical and right-hand helical. I am left-handed and shoot a left-handed PSE Mohave bow. I do not yet make my own arrows and buy stock Easton 2413's. Does the left or right helical make a difference when you shoot left-handed.

Thanks for the input.

No.

it depends on what hemesphere yoru in! if your in the north it will spin clock wise but if your in the southern hemisphere it will spin counter clock wise

yeah IM only kidding!

I've been shooting them for a couple weeks and really like them. They do seem to shirnk my groups. We've used about 6 degree offset on 'em. They spin like the dickens.