Honestly, it is a mixed bag of process/outcomes. Sometimes the process can go VERY quick, other times REALLY slow, and still other times teams can come out of nowhere. It all depends on what THEIR needs are, and what THEIR time frame is. They are the driver's of the bus, and trust me, that can be very maddening. Don't get discouraged if they are slow to get back to you, or if you call, leave a message, and they don't get back to you. These coaches are busy, and if they want you, they will find a way to get back to you.
As many have said on the boards previously, most of the time you'll know if they are recruiting you.
In Ryan's experience, he was slow played by a lot of schools. (They would check on him with coaches, text him, follow him, etc.) However the schools that really wanted him didn't slow play a thing. They came right after him.