Sounds like your set up is ok. You are never going to hit every bite but if you are hooking and losing fish you are probably at the wrong depth. Try shallowing up a bit, 2 inches or so can make a huge difference. Alternative is to try a different hair length or smaller hook.
Heavier hook length can sometimes work too or simply use a coloured pellet or a different size pellet, feed 8s fish 11s etc. Vary things too chuck beyond your feed and around it etc.
Its never a case of feed cast strike and land fish!!!
I use a mixture of 8mm green, red and brown pellets in my feed, the robin reds are pre drilled so you can pull the band through the hole, this can sometimes be deadly.
Just one final point, your rod is not too stiff I assume? You need a soft action otherwise stiffer rods will rip hooks out as the fish powers off.