It’s tough to say, especially that week… I know you are wanting an “average” wait time. However, UXP can be unpredictable. It all depends on how many people have also bought it and are using it at the same rides at the same times that day. I’m sure the UXP queue for Veloicoaster will always have people in it, but there are times so many rides will have few to no one… Anything I say would be a guess… I’d budget at least 30 minutes and if you get ahead you’ll have extra time. You’re still there for sooo long you’ll get it all done though!!
I did SeaWorld, for the very first time ever, last February. I wrote this about it…
Warning - It’s VERY long!! 