Right.No argument from me- my only point was that with a dedicated means to slide-in a tray (or an old cookie sheet), you could perform the evaluations even during inclement conditions. May not be too big of an issue for you, but I find it handy around here, especially during those cold, rainy days that seem to always land on the day that I need to be evaluating 48 hour drops.
As long as I keep the under-frame space clear proactively, I can do the same most any time and with minimal disturbance (with the long hives).
For the CVH hives, I want to make 1-2 bottoms equipped by/for the trays.
Something nice to have with those IF am to be consistent with the mite counting program.