Is a large arbor common among 4 weights? I see the benefit to a heavier rod, particularly when you need to go to reel.
Good question, i would say yes, I think most 4 wt. rods would have either a large arbor or mid arbor, not a standard arbor. The Pocket Water reel is a standard arbor reel. The only big advantage of a standard arbor reel is less weight/size (lighter than mid arbor & much lighter than large arbor). Large arbor reels are best for fighting big fish as they can "pick up" fly line much faster on the reel compared to a standard arbor reel, particularly helpful when a large fish is running directly at you. However, the weight difference were talking about is ounces, not lbs. obviously, So yeah...