With minimal spawning areas for sunfish, you'll have problems with producing enough sunfish forage for your bass. This can lead to lower numbers of sunfish and therefore the ability to grow some nice sized BG(bluegill) and RES(redears or shellcrackers). It does make it more of a challenge to grow nice sized bass because of a lack of forage for them. If it is coastal sand, chances are the soil is not overly fertile. Are you looking to grow big bass, would you be happy with big sunfish but smaller bass?