I am planning on buying a vacuum sealer and would like some feedback on which to get. I plan using it to cook sous vide along with other techniques. my worries, however, stem around vacuum pressure. I plan on relying on a sealer to compress different items and was worried that some sealers would not give enough pressure for compressing these items. i would appreciate any feedback on ones experiences. I am almost set on the foodsaver advanced model but am unsure. Thank You.