One quick point regarding recruiting numbers...
I think there's too much made of the amount of open spots for incoming signees. The rules and counters matter only in unique situations. Reason being is the 85 total scholarships rule. You're allowed to sign 25 each year. Let's say a school has 85 schollied players. 25 leave due to graduation or NFL. Another 5 transfer out. You now have 30 available scholarships. You however, can only sign 25 kids by rule. Now the count back rule would allow any qualified early enrollees to "count back" to the previous year's class, if there were open slots, as to not exceed the 25 limit.
So in short, at a P5 like UF, you usually don't have to worry about being that short on players. The 85 total rule and 25 each year rule are more important. And the count back rule isn't as complicated as its made out to be.
I hope this helps. I just wanted to lay it out in laymen terms. There were a lot of questions regarding this.