I've made the trip from iowa 3 times. the recommendations above are spot on. Grenada can be tough, it's a big fish lake not a number's lake in my experience. First week of March is usually early for any spawning. I always went the last week in March and think that week or the next is the start of the spawn. So I would plan on creek channels, middle of bays, typical pre-spawn areas. Spider rigging is your best tool. It's always worth going there, the first 5 minutes of my last trip I landed a 2lb 10oz fish from the first stick up I fished. Made the trip.