If you can afford a vacuum sealer and the rolls, this is the way to go imo. I just give a good rinse a few times of very cold water in the bowl to get rid of any sales, blood or slime. Put some paper towel in the bottom of a zip loc and put the fillets in the fridge overnight. Any residual water get soaked up in the paper towel and your fillets are moist and firm, not soggy. I then vacuum seal. The vacuum seal works better anyways when it's not pulling a bunch of water from soggy fillets. The nice thing about it is that you can thaw out a package in an hour or two instead of having to plan ahead a day and the fillets come out nice and firm. I just wouldn't recommend the cheapest sealers under a $100 though.