If you fished the biggun,try hares ear,orange fritz,black fritz,or blob.Finally if its calm enough try buzzers.If you fish the one inside the horseshoe go right to the narrow strip near the little islands(have your back to them)and use cdc's or parachute type flies.Failing there go along till you get to the end of that pond and fish the 3rd off last peg on anything with yellow in(vary the retrieve).
If that fails I'm f****d.

Jack caught one about 18" from the bank int he horseshoe near the 3rd peg,sorry can't remember the numbers.