I am quite up front that I raise my own queens here that I do not treat for varroa. I also buy queens (25 to 50 at a time), place them in a yard by themselves just to see how they will do. In the past couple of years I have bought CARNIS and the new version of Varroa resistant hives from Northern California. The folks (well know but I will not give names) touts them as hardy but raising these beside my own queens tells me NO. Even the Varroa resistant variety are not very robust or not mated well enough to last more than a season < I will point here that a failing queen, a queen that is weakly mated or any hive going thru replacement of this kind of queen (and contrary to some folks thinking some hives will and some will not replace a weak queen) will tend to contrary to outright mean. When you dig a bit deeper you discover that the folks raising the queens replace every queen every year so how they even expect to get to a robust and hardy type of queen I DO NOT KNOW.
This past year I purchased about 50 of the new varroa resistant variety and about half did not survive 2 weeks in queen bank (which suggest poor mating and inadequate QMP for the queens). Normally they would never be banked that long but a spell of bad weather interrupted splitting just after they arrived. Even the one set into splits were not accepted well...
In prior years I also came to the thought that queens purchased from California were selected based somewhat on their response to 'the syrup bucket' since early on they tended to do well until you forgot to show up one week with syrup bucket in hand.
Not certain Jen about your 'A and D Bees' designation?
? But anyway (and more in line with your original question) the Kona queens I have purchased (pre buyout and new owner) were vastly superior to the queens I have bought the past couple of season out of California.
It should be noted that lots of queens are produced for the Almond pollination business and these kind of bees tend to brood up very early and consequently go thru their food resources very quickly..