As I reported here Flint 2 FW 4.5.8 release 4 - #22 by Merciful
Power on 5ghz tops out at 20dbm in regulatory area where it should be 23dbm (UK). Changing it to another similar regulatory area results in the same limit. 2.4ghz band already set as UK as well.
Edited to add - with 4.5.8 stable firmware.
Also as above channel analysis is non-functional.