Has anyone used the hive doctor smart base? i did a little search but couldnt find much on it. i have one on my hive and i put oil in the first tray and left the 2nd out for ventilation. the issue was after 3 hours i checked the tray just because i wanted to be around my new hive and there was about 20 bees in there. i thought they made it small enough for bees not to fit? im considering meshing the tray so if bees get past the first bit that the screen will hold them out and only SHB could fall in? i dont really want to fill up the tray with my bees.