Thanks for all the response.
My question was specific to the actual time limit set by USAG. There doesn't seem to be a consistency in what everyone thinks what it really is. At our last Team Cup, the girls were given 55 seconds. Our gym has been working with 1 minute 10 seconds all season long without an incident (all sanctioned). Obviously, a bunch of our gymnasts got double-dinged.
50 seconds seem awful short for a routine that is not rushed.