"Opsacks may not be perfect but my own "smell test" would indicate that less smell is getting out. So maybe now the bear can only smell my food at 100 yards rather then 500 yards, I'll take whatever improvement I can get."
For me that's the name of the game, and I spend far more time working to improve that than worrying about new gear. The reasons I went to Nylo Barrier bags over Opsacks are that they allow a much better seal, are lighter, larger, and, being a floppy bag that doesn't use a zip lock, conform to just about any space. They are also cheaper.
"I'll probably eat a combination of bars, nuts, fruit, and cheap jerky. The advantage of prepacked food is there is another layer of plastic between the food and the bear's nose. Also these are foods with minimal grease and they won't shower me with crumbles like say, crushed pringles. I'll probably throw in a couple small opacks to seal up the garbage in."
I think you're spot on the mark here. Minimizing the odor of the foods you bring is huge, IMO. I do the same.
I also use a small Opsack for my food and garbage during the day, and transfer the garbage to the main sack at night. Keeping the odor off your pack, clothes, etc is super important, because no matter what the odor is on, the bear will smell it and come to investigate. At that point, it's just a matter of time until he discovers the food bag, odor or no, and then you've got a problem.