I've done well, with my son, on Grapevine. Seems most any rocky point will hold 'gills. I have a favorite spot on the south end that hasn't turned on yet--though I didn't get to try it this weekend. Last May we slayed them (through August as well). So, maybe in the next week or two.
Funny thing about the 'vine, I don't think you could even buy a weed there. Someone on the forum might have an explanation, but there just doesn't seem to be any aquatic vegetation.
1987 Whaler Super Sport 17, Yamaha 90
1981 Whaler Sport 13, Johnson 50