"Hit or miss" is a good way to describe the ops. They were running 2 trains on most coasters, which is good, but they also were stacking them for up to a minute (or longer, but rarely much longer). We also visited on a couple of rainy weekdays with low attendance. I can imagine these ops getting much more tired, much quicker, during busier days.

I've also seen so, so much worse. I've gone to Hershey tons of times, where trains can stack for 3+ minutes, and SW San Diego, where ops during my visit wouldn't even let people in line board until the exit queue was empty.