Randy, not too long ago I had a Baltoro 65 and a 40 lb total pack weight, it was ridiculous. I too went to REI to equip and was originally looking at the REI Flash when the sales guy told me it was only good to 30 lbs, and I should get a pack capable of 40+ - not knowing better I took his advice and got the Baltoro, a well built pack, but I wish I had discovered BPL earlier, as it is I've replaced just about everything I originally bought at REI.
I can speak to the Exodus FS as that's one of the 2 packs I have now. It's an absolutely awesome pack and very comfortable with a load of ~ 20 lbs. I've not carried more than that, but expect it'd be plenty comfortable up to 30. But why? With the right gear, and more importantly just taking less, you should have no problem getting your kit into the 20's. At that weight the Exodus is like a feather on your back and all the serious suspension of the Baltoro becomes unnecessary, but the Exodus FS has a very capable suspension. MLD is renowned for the quality and durability of their gear, the Exodus is absolutely top shelf.
I like the design of the new Gorilla as well, and can at least speak for the new GG packs in general, I have the 2012 Murmur. It too is an awesome pack and carries like a dream with 15 lbs, so I suspect the new Gorilla is even more capable. I don't think you can go wrong with either pack, just go for it, and make sure you get your base weight below 20 lbs and you'll be surprised by how comfortable it is and how much more you enjoy the hike.