yah, for everyone who is thinking "maybe I've just been missing them................thats why I have not hooked one yet this year, just need to be setting the hook at every dip and tap"
you will know
Well, I am not quite sure it is that simple.
I have gotten to know an old timer at Vedder who has fished the river for 53 years and has given me many good pointers to follow this season.
According to him, many new commers miss strikes at Vedder as float indication is sometimes very suttle, especially when pressured with many anglers.
He told me that he would fish a same run with other anglers and he will many times see them miss a strike because they did not recognise the suttle indications of a strike.
A slight slow down in the speed of the drift with no vertical movement of float may mean fish is on or slight lateral movement of float will also indicate a strike depending on the flow.
Sometimes he will tell them they just missed a fish and when told they will mostly be dumbfounded as they had no idea. He will ask them to recast exactly as before and set the hook when told. Sure enough he had them hooked on a steelhead on the next cast.
I guess the moral of the story is that reading a float well takes a lot of experience and learning.
Advice I got was observe very carefully how the float behaves on the first cast down and if different on the next drift, be ready to set the hook.
Sounds easy, but as river contour changes with each drift (unless going over exact same spot), it is not that straight forward.