Well I took the plunge and purchased my new Scentlok Full season gear yesterday. I already had the Scentlok Carbon bag and kept my last years Scentlok clothes in it sealed inside a SPACEBAG. The space bag over time would allow air to seep back in and they cost about 16 bucks.
I found these bags below and they appear to be just perfect. I purchased a box of 3 XXL's for 5 bucks. I just sealed it up except a small portion and then squeezed the air out and then completed seal. After 24 hours no air seepage. They are very thick and even have a handle. In the past I have also tried the HS bags with the ziplok style zipper and every year the zipper breaks.
I will let you know how they hold up. They can be found in most stores in the Trash Bag/ Kithen Isle.