I'm glad to see that someone in your group, got into some fish.
A primary reason that you saw a lot of fish, is that the water level only rose so high. If we get any significant rainfall--before your next trip--I'd encourage you to move upstream. If we don't get any (or very little) rain before your next outing; the fish will still likely be largely holed up at Ernie Walters. They'll be sitting there waiting for more rain and colder water temps, to start moving again.