Boy that looks like a nice machine.
I to have a food saver that wouldnt suck very well except on dry goods.I e-mailed them and they gave me a tip that worked much better this year on my fish.They told me to try drying the fish real well with paper towels. This worked 100% better with a good tight seal.
Maybe this will help till you get the high tech machine.
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Chinook are the Best all else pale in comparison!!!!!