Our experience is from 2019 so maybe still relevant? Definitely check with the CMs because things seemed a bit flexible depending on circumstances. We did multiple shows (me in a power chair) and most times were told to wait in the regular line. Once or twice we were directed to wait at the front just outside the ropes. I think it might depend on the size of the crowds and number of WC/
ECVs, etc. This goes for both the dining package line (left side) or standby line (right side).
Even if they have you wait in standby line with everyone else, don’t be surprised if they come unsnap the rope and bring you around before the line starts moving. In our experience, once the dining package people were in and the CMs knew how many accessible spots they still had open, they walked down the standby line and pulled out those of us who were not transferring. If someone was going to transfer, they waited.
Speaking of which - transferring:
To transfer, there are spots to park along the walkways at the far sides of the theater going down towards the stage. For anyone who’s the slightest bit unstable on their feet I don’t recommend transferring. I decided to do it once, assuming it would give us better seating options and that I’d be okay using my cane to join my family. But the ground obviously isn’t level in there and I had a few scary steps. After that I stayed in my chair. To stay in your WC/
ECV the accessible spots are towards the front, in the middle and at the back. The closest spot at the front was still about 5-6 rows back from the stage. Obviously, the sooner you get in the better options you have.
How crowded it will be depends on who you’re seeing. For some of the popular acts it can get absolutely insane (Yep, I think Hansons fit that category

) In those cases, yes, the third show is maybe less crazy but probably still really full. At least third show you have better chances of getting a good spot in the standby line if you don’t mind waiting. But we’ve also seen some acts where you can just go in late and find plenty of room even during the first show.
One more note - a shoutout to the CMs who were working that theater. As an entire team, they were some of the friendliest, most efficient, helpful and knowledgeable CMs we’d ever encountered.