it is true that the fish have come to the worm beds to feed on worm as some worm will show themselves when covered by the tide some will even leave their burrow altogether and go with the tide to new ground,and in more lumpy sea they will get washed out,bait wise crab would not be a prob over lug beds as i have dug up hundreds of crab that are buried in the sand on worm beds, fish are opportunists and would not pass a peeler while on worm beds or for that fact any meal found on worm beds such as young flats,sand eel,shrimp,prawn and of course worm,if in doubt why not lug and crab cocktail