To further confuse, a 6500C "Pro Shop" will have 2 spool bearings and IAR, but if you get a 5500C "Pro Shop", you get a spool bushing on the left side, a bearing on the right, and IAR
Some may have a strap for looping them over one shoulder, and some may have two straps for wearing as a backpack
Will handle 30-pound Power Pro as long as you remember to set your drag accordingly
This provides a rod solid fitment to slide tracks, which is needed when holding the weight of a fishing rod
Thats led to a reasonable success rate, but the occasional preventable heartbreak, too
Alas, I see that Orvis has discontinued making them