I've got the Cabela's "ultimate upland vest" (can't recall what it's actually called, it may be "ultimate gundog vest"). Either way, the game bag was terrible. It had openings at the front for some odd reason, and I lost a few quail out of it before finally sewing it shut myself.
This fall, I decided to use my birthday money to purchase a new vest. I bought a Pella Bird 'n Lite Strap Vest. I've been happy with it so far. It really does tend to distribute weight as advertised, as I've used it deer hunting a few times this year, with quite a bit of gear in it.
There is a review on the Cabela's website where some guy is bashing the vest because he found it difficult to place a bird in the game bag. If you have the straps cinched tight, I could see the issue, if you didn't unbutton the game bag! However, the game bag is easily accessible when you have the buttons undone.
I decided to get a strap vest this time around, for warm season openers, and so I could layer up in cold weather later in the year. The vest adjusts to accommodate even my heaviest Carhartt with ease.