2400 Canopy questions

Hello all, I am considering setting a tower up with this gear. Some questions:

What polarity does it run at?

I know the APs are 60 degree - is there any give to that? I am curious if they will go 90 degree instead of 60.

Thanks.

http://www.lastmilegear.com/ they offer several options

the 2.4 is V pol and the 60 degree is a little stuck, you might get 90 from them at a short range but you should use sector antennas if you are going to do that.