How do I set brightness less than 2%?

Minimum brightness on my mini day and dusk bulbs appears to be about 2%

i.e. there is no perceptible difference between brightness=1 (0-65535) and brightness=1400 (0-65535) = about 2%

I’ve used the LIFX LAN protocol to set pulse waveforms with brightness alternating between 1 and 1400 to test this. (I can perceive a difference between brightness=1 and brightness=1500, but not between brightness=1 and brightness=1400).

Is there any way to set the brightness of these bulbs to less than 2%?

(would it be possible with a future firmware upgrade?)