While there are certainly advantages to the big boys, too many people use them as a crutch to avoid refining their skills, rather than as a learning tool. Its big, so its easy to lay flat on the hone, or flat on the strop. no need to develop more control that you might need to keep from lifting the spine on a smaller blade.
One of the nicest shaves I have had, was from an Adoration Ax 9/16 blade. Superb sharpness, smooth, and nimble as all get out. fit in every nook and cranny on my ugly mug.

A quick draw specialist one said "I may not be as accurate as you are yet, but my aim will improve, you wont get any faster"