I work at the studios as an Ent Tech. I did all mine over the phone and it was a while ago. There is a good chance the position your going for is in the same park. We have openings.
Uhh... I just checked the schedule... it takes far less than 50 techs for RoE... this week its 13 tracks. Wishes is even less.
The APA show that was a couple of weeks ago had a crew of approx 18. Granted that show was 6 times the size of wishes but and took a couple of days to load, but was...
HGC was GREAT actually. That is where I was working for Xmas eve and Xmas and loved it. The crowd was so into it, the choir was into it. Made for some great evenings.