Its a a had decision at the moment , fresh blacks are fishing better than out else in the area i fish, i love me bulmer worm allso , if i was preparing the blacks my self for the freezer , and then i know they have been prepared correctly i would use them over blow lug at the moment, the blow lug are all milky at this time of year and dont seem to be fishing well , if the blacks were bougt frozen from a shop i wouldnt have as much faith in them you dont know how they have been prepared for the freezer