Student controllers are everywhere. After they finish their MOS school/A school they are Air Traffic Controller Trainees - and then they head to their duty station where they continue to learn. It was always funny to be shooting a PAR and hear the stud get totally messed up/turned around, and then hear a very, very calm voice (that was always louder than the stud) come up on freq and say "Leroy 05, turn right heading 230 descend and maintain 3000"
So what you're saying is that by going to Vance you don't practice what you will do 90% of the time on instruments/landing at the boat in the Navy...
Or better yet, be on a flight on a SUPER busy day, finally get to the PAR thinking you're good to go only to have some sweet little voice talk you down, start screwing up, give you a turn in the wrong direction to a correct heading, then have a BIG burly man's voice come on without introduction and give you the right correction and then suddenly you remember that the PAR freq is discrete so yes he must be talking to you... helmet fire extinguished....for now.