If you carry a full-sized golf bag with Quadshocks, I believe it will be worth checking out the REVOLUTION Dual Pack. Even fully loaded, The Dual Pack is well balanced and wears more like a traditional backpack - meaning higher on the back with less strain on the lower back and shoulders.
Add in the waist strap and you've got a great way to dramatically reduce the strain on your body that carrying a lot of gear during a long round can impart. Although the Dual Pack has only been out for a short while, touring players like Dave Feldberg (a notorious disc hound) and Carrie Berlogar took to it immediately because of its comfort and the additional "bonus" space you get from the upper compartment.
As for specific features, the Dual Pack can carry two 32oz Nalgene-sized bottles in two mesh utility pockets with draw strings. There are two flat zipper pockets on the lower and upper compartments that could be used for putters, or one of the mess pockets could carry putters as well.
I realize the Dual Pack design, with its two distinct compartments, is new and different. It was never meant to be all things to all players. As a "boutique" manufacturer, REVOLUTION Disc Golf has the luxury of designing and producing specific products for specific players. If more and more people start to dig it, that's great. If it becomes a niche product that is perfect for some players, but too much for others, that would be great too.
As for its price, we wanted to pull out all the stops in terms of materials and features offered. The final price is very much in line with other high-end backpacks and is actually a little less than buying one of our Carolina TEAM Bags with Quadshocks.
If you get the chance, I'd highly recommend trying one on. It is very comfortable and may be just what you were looking for. If not, we offer a plethora of other incredible dg-specific bags and dual strap options to fit most any need.