<blockquote class=quoteheader>Davey boy (ACA) wrote (
see)</blockquote><blockquote class=quote>
Yes James, Thats sound advice.
Using those methods already, can't seem to pick out the smaller fish........ which was my original problem.</blockquote>
Then 2 possible things. Either they are not there in the size you want in any numbers or you need to look at your swim selection and perhaps try areas that you may not normally consider, like shallow faster runs.
Just because bigger barbel are present in good numbers, doesn't mean you'll find fish of all sizes in every swim. The ribble is full of fish that size and are almost unavoidable in some swims. Yet I've fished other rivers that are full of barbel, like the Severn and rarely see fish of that size.