When IOA has Early Entry it is standby line.
When the standby line gets long they close the standby option and switch to VL. During Spring Break with the crowds that was at official park open.
You will probably have to use VL for your trip.
Appreciate it. Consensus is ~10-15 minutes before park open is when the first VL/VQ opens?
During EPA Hagrid’s starts out as standby and moves to VQ when it fills up, which is before EPA is over. I was there this week, and it was standby for about the first half hour of EPA, and then went to VQ, usually when the standby time sustained at 120 minutes, though one day didn’t switch over until after the listed wait climbed to 150 minutes.
I don’t know if Hagrid’s will start at standby and fill the queue during a regular opening or not. It’s possible. Usually the VQ return times we saw started an hour or two out (so the 8:30 VQ drop saw return times starting at like 9:30 or 10:00). Probably a good idea to check back in a couple of weeks after the EPA changes over to US to see what they do. I’m sure someone will report.
We'll be there for 3 days total for IOA/Universal so it's worth giving it a shot one day to see if it's standby (and check to see what others are reporting in the meantime). Otherwise we'll just go ahead and try the VQ route. Appreciate the advice from both of you!