I have mutt bees in Montana, queens from all over. I want to feed in a screened shim. If their tongues are 7 mm, or a quarter inch I can just drill some holes in a regular mason jar lid, stick it on some #8 hardware cloth and feed away. Last year I lessened the distance between the underside of the hardware cloth to the syrup by scraping down the rim of the jar lid, wondering it that's necessary. What say you, great bee gurus?