I buy the 51-60 count raw prawn tails , pop the shells of. For summerrun I just mix water and Procure and for winterrun I will add a little salt and anise extract to the solution. I let them soak about 30min. stirring a couple of times. Then drain for a hour and package a dozen per bag and freeeze. This does'nt cure them ,they still only last about 5 days in the fridge. But I refreeze them all the time and they still work just fine. I just take a few out of the freezer the day before , what I don't use goes back in the freezer for the next trip. The best thing is I always have bait ready to go and they are cheaper and much more durrable then sandsrimp. As for catching fish I've done great with them,I havn't bought sandshrimp in a number of years.