I've been to Dale several times and last year my brother-in-law and myself stayed at Horse Creek Resort (more of a "lodge" or fishing camp type of place than a resort - don't take the wife if you go) and hired a guide named Bob Coan who showed us the nuances of the Float N Fly. We both caught smallies bigger than 6 pounds in our two days on the water. When we woke up on Saturday, I walked out on the deck and it was windy and snowing at 5:30AM - I said "Danny, we're in trouble buddy." We walked down to the dock at 7:00AM to meet Bob and I thought he was kidding around when he said "You guys have a got a perfect day here.".
To make a long story short, we didn't catch 20 fish each, but the 20 we caught between us were all very good fish with many over 3lbs, 5 between 4 & 6 and two over 6lbs. It is an odd method of fishing - at least for me - and just learning to sling all 11' of that rig up against the bank on a windy day takes some getting used to. Watching that little float dance around with the wind and then disappear is worth the effort though. We used Punisher hair jigs in 1/16th and 1/8th with the hot color being green with a splash of orange (fire craw?).
Enjoy your trip. A truly great piece of water. If I can find the pics of that trip, I'll post them soon.
PG