This deadly fry imitation is the perfect fly for this time of year. The Trout are gorging on perch and other fry at the moment and pulling this fly past the weed beds will guarantee a big take.
Strip it 2 or 3 times and pause for 5-10 seconds before stripping and pausing again. They'll take it on the first pause or the 2nd pull.
If the trout are hammering fry within casting distance, drop this fly in the area and just leave it. They'll assume it's a dead fry from their last attack and go for it straight away.
Hooks are super strong, barbed, size 8. These flies are available in both 7 cm and 9cm sizes.