Noooooo. Soft Hackles are bad, bad, bad...Don't take any with you to a tailwater...especially not olives in the 16-18 range...Do not fish them across and down, letting them swing in the current. I would also strongly suggest that you not take between 6 and 12 with you because they might get chewed to bits...
"They say you forget your troubles on a trout stream, but that's not quite it. What happens is that you begin to see where your troubles fit into the grand scheme of things, and suddenly they're just not such a big deal anymore." - John Gierach