Re: Slatted Rack Difference
All these slats are only making up for insufficient air buffer under the brood nest and insufficient continuous vertical comb span (a natural thing to have).
With my tall frames + 2-3 inch air below them I need no slats and have none of the issues listed here and unsure what is the fuss about (basically, a made-up problem to solve).
The slats are making up for the design flaws in standard Lang/Dadant specifications designed in for the industrial mobility, storage, and compactness (the design flaws - from the bee point of view, not human point of view).
Former "smoker boy". Classic, square 12 frame Dadants >> Ukrainian frame experimentation.