Thanks for feedback/tips tricks, keep them comming :-).
"Typically we budget about 100 lines per hour - given 2 maybe 3 takes per line."
100 lines per hour with 2-3 retakes in the end translates to how long final voice acting output? 30 minutes?
This averages to about 12 seconds per line. with 3 takes one after another then you get about 20 minutes of final audio.
So if the actor is able to nail the performance, delivery quickly in 2 takes you get more.
If the average line length shorter then you get more... etc.