Ruddy hell.....
I'd stick with modern general fry patterns with movement, they are far better than the old fashioned patterns like Jersey Herd, Sinfoils Fry, Polystickle etc....
So go with:-
White Hummungus's
White and Silver Minkie
White & Silver Snake.
If you really want to stick to old school patterns Appetizer or Jack Frost

would be my choice
Just match the size of fly to size of fry...
No way have Rudd spawned 7 times this year !!.......unless someone knows something I don't.
Generally fry hatch the 1st or 2nd week of June depending on water temperature and grown on from there.....that's always been the case on the Midlands reservoirs....