got a 5lb brown out of the middle reaches of the rakaia today and did an autopsy cause I wanted to know the same thing.
The stomach had about 8 what appeared to be stonefly nymphs about 10-12 mm in length and bugger all else.
The small ticer she took must have looked like christmas.
everthing have read or heard about nymphing below the gorge being a waste of time is going to tested now.
Anyone else tried it?