When I was in Pensacola working for CC at an Oldies station about 10 years ago, we generated our log locally and sent the same Selector log to the Panama City oldies station. It amounts to one or more salaries they don't have to pay, one of the reasons there are so few radio jobs now. I worked mornings in Pensacola and voice tracked afternoons in Panama City, oops...there goes another salary. From an economic standpoint it does make sense, but in my opinion has nothing to do with these uncertain financial times (it's been going on for years).