Aah, that’s a good point - I’ve got an old Maverick somewhere, I’ll dig it out & try it against the FireBoard and the WSF probes.
The smokeboost kicked in around 210° for me and fluctuated +- about 20°f and if you set it to on when at a higher temp, it stops the pellet feed & fan until the temp drops low enough to enable the smokeboost. And everything I’ve read reckons that the most smoky flavour is imparted when the food is not that hot: