As Bass-ic Instinct said if the water is coloured like it always is in the bristol channel you could try using juicy baits, we use loads of peeler crab around the clevedon area and last year it produced quite a few bass with the biggest I seen was around 4.5lb ( not mine though )
A mate of mine also had one around the 6lb mark but dropped it climbing back up the rocks, rod under one arm, frisky bass under the other, a recipe for disaster lol.
An option that Im thinking of trying out is a surface popper or something that will cause alot of splashing, Ive been thinking about baiting it aswell with crab or mackeral to add a bit of scent.
Most of the bass around here are within 50 yards of the shore but if we use mackeral, squid or crab baits theres also a big chance of catching a conger which would be interesting on my little bas rod.. lol
Mike