If you want to use a superb Barbel mix in the feeder,the hali crush ,which is crushed halibuts pellet and crushed hemp mixed with the Fin perfect no 2 mix and some tinned hemp ,including the juice,along with a few 4mm halibut pellets works fantastically.
Mix half a bag of halicrush ,half tin of hemp,plus all the juice,half a bag of no 2 ,plus some csl liquid ,stir vigouressly,leave for a bit,then check consistency,if to dry or too wet top up with some yof the remaining mix.
I add the 4mm pellets as I go to each feeder full ,more or less according to how the fish are having it.
The new toughened S Pellets are excellent,as are the pre drilled crab and hali pellets,8 mm,are best in daytime from my experience.
Try longer hook links than usual.and smaller hooks,I use S5s in 8-12s
This has been my standard mix on the Wye this year where we haver caught serious amounts of fish in all conditions ,coloured or clear.
Pons