I tried the Rudy Project glasses, with and without the RX insert and fell back on the Oakleys. My eyelashes kept hitting the RX inserts and they gave a strange fisheye sensation. Maybe it was just me, but i ended up going with contacts. The rim of the Oakley M-frame glasses is also a little higher which is good for a more aggressive position on the bike.

Kudos to Rudy's for making awesome Rx insert glasses though, i like the style and which they would have worked out.