I have had a notched inner cover on my first hive since day 1.. First year beek.. At first i had hive body, notched inner cover, then and empty deep for feeding.. The bees used the notch entrance just fine.. When i added a second deep and removed the empty deep up top they bees kept going to the place where the notch use to be trying to get it. I figured they would eventually go up a box and find their entry way. (yes i had the telescoping cover slid forward so they could get to it).. Now heading into fall, they never have used that entrance again. 2 deep hive body, just added a second super a week ago (just in time for goldenrod to make it smell like work boots) and still the bees make no effort to use the top entrance. Is there a reason they dont use it? It seems very not efficient to walk all the way from the bottome board to the top super to store away necter n such. Bees seem to be very efficient in everything, why would they avoid the easiest way to store their findings??