and costs $40+ more than a comparable backpack.
The op never mentioned a budget. Also, a Grip bag will fit his exact needs and it's worth the extra $40 imo.
Animage, I recently switched to a Grip bag after using a Revo Carolina + Quads for a few years. Both bags are great but the Grip is much more comfortable and my lower back pain has disappeared. The Revo Carolina had more storage room, but you mentioned that you need the extra storage space/bulk. It has 2 putter pockets with room for 3-4 putters, holds 16 disc, etc. Seems to be a good fit, and different then your current inventory.