I am using the larger 2.4 in my A10. If you have the room for it, I can't imagine a reason no to try the larger one if you are going to be running many 8711s etc.
MY research has suggested to me that the RF link is at least on par if not superioe to anything else out there and the redundancy in the system is comforting too.

I am still wiating for mine though....

The downside to weatronic is the support. Gerhard himself has been very good. But he also requires support from Germany which seems to be the weak link.

What are you building and where are you flying? I am in MN too.

Dave