Plain pellets will catch plenty of carp off the top, but you can test out different flavours and attractors very easily by top-coating your feed with different liquids. I also like to make up some PVA sticks of pellets that allow me to catapult baits much further, should the fish be at distance. Normally I put in this preparation at home so that I am not wasting time on the bank.
Mix one pint of 3mm Riser pellets with two pints of 11mm floating pellets. This mix creates a much tighter PVA stick than big pellets alone.
Add two teaspoonfuls of TG Active boilie dip to the pellets and shake so the bait is evenly covered, then allow the liquid to soak in for 10 minutes.
Wide-bore PVA mesh makes up small, round sticks. These can be catapulted accurately up to and beyond 50m if the fish are well out in the middle.
Store PVA sticks in a bucket of pellets. This absorbs any moisture that might melt the PVA, and the sticks will always be ready to hand.