Yes, the interface of the D40A is excellent from my perspective as well.Thank you for verification. 311uA is not ideal but acceptable. ... IMO Its a lot better than the EA4's UI, don't get me start on the ballooned button on EA4...
As for the current draw, it is interesting that the lock-out steps up both the initial and long-term current by exactly 300uA (i.e., goes from 1.7mA/11uA normally to 2mA/311uA in lock-out). But it is a minor wrinkle, as a 311uA current draw is still acceptable (especially in a light with a physical lock-out).