Hi Afro,
I just got back from 2 days at Hinze with a few hundred other people, fishing the Stessl Hinze Classic. The fish are very quiet, with very little surface action. The guy who won the lure/fly division cast and retrieved all weekend for 16 legal fish. I trolled 1 legal fish yesterday, and 4 today. The majority took Voodoos in Gold/Black and Red/Black (Stripe.) I also released 4 or five undersized fish, and one little fella of 25cm would have to have been the best fighting bass for his size that I've come across. I was calling for the net thinking he was a good fish.
I often found that when small fish are hitting lures aggressively, the bigger ones seem to shut down. Maybe its just me.
Good luck at Hinze, its still a great dam, and the fish are just a bonus.