Formats like alternative have been tried in this market without sucess. Older listeners may recall the 4 year 97X experiment from 1994 to 1998 that failed to make ratings or money. Before that, there was WGVL for 10 years from the early '70s until 1981 when it became WYKS. WGVL is also fondly remembered, but it struggled financially for its whole life. In the end, the station was really a dump and someone with a different vision bought it and changed the format, meeting with instant sucess.
Basically, these types of formats can work in large markets where capturing a 2 share is adequate for survival, but even in a market like Gainesville with its youthful skew, not enough kids tear away from mainstream formats to really make a significant improvement over the numbers in any other market. So, the bottom line is that you can do alternative formats here only if you have a survival strategy that does not include great ratings.