That is what I have done to this point; the max MCS value I can achieve is 7 when plugged in to 802.3af power when I go to the injector I get a value of 15 I am running the 5GHz radio w/2.4 administratively shutdown regardless what windows see it as (300mg) airmagnet (135mg). Now when I remove the radio from the AP and run it on 802.3af power I will get my MCS value of 15. This is what leads me to bleave that there are some other settings that need to be modified in order to achieve MCS value of 15 without removing the unused radio. Begging the question how are we suppose to successfully configure this to work as described in the release notes?

My understanding is that you must physically remove one of the radios in order to get full powered performance out of the desired radio (your experience seems to confirm that).

With the newest code you don't have to physically remove the radio. I've set this up in my lab and was able to get a full 300Mbps connection with 802.3af power and both radios installed, one is disabled. To get the full rates make sure you have channel bonding and the guard interval set appropriately.

Did you get full radio power (regardless of the speed)?

Yes you will get full power. You won't be able to get 300Mbps without full power.

I was thinking about xmit power. You could still get 300Mbps at lower xmit power, just not with the same range.