Blossom End Rot (BER)

Interesting Garrett. I've had just 2 tomatoes affected so far one a big knobbly one and one orange banana which seem prone to it, both early. But lack of water is definitely a cause as well; the number of times I've been a bit late watering after a hot day and then lots of blossom dropping off as well as blossom end rot on developing tomatoes.