2.5ms frame size for 10mhz channel size in ePMP

We need to cut down on latency of many of our links that can only find 10mhz of free spectrum. 2.5ms frame size for these channels would be very welcome.  

Yes, good idea... I've asked for this too a few times. If you're not using GPS sync, then using 5ms frames and flexible mode is almost as good.