I did my first bridge with vWLAN using 2135s and it seems to be working well, however there doesn't seem to be any way in vWLAN to monitor signal strength between the two APs for the purpose of optimizing alignment. With the mesh panel antenna there's about a 20 degree spread in vertical and horizontal, so I know it doesn't need to be laser perfect, but it would be nice to get is as close as possible. Since they were only about 700ft apart I could look back to the opposite antenna from each location with binoculars and see fairly well if the antenna was squared up towards me and make some adjustment, but there's got to be a better way for the future.
I meant to post earlier that I did wind up talking to support, and the bridge signal strength is visible via the AP's CLI. Good to know.