In my experience, I found at first I liked smaller, stiffer blades, Easy to manuver and quite predictable. Wedges were my preferred razor. As I seemed to have matured in straight shaving, I gravitate toward razors of the more concave persuation in larger sizes. They require a bit more attention, but are nice to experience. I still have some smaller wedges in my rotation, but really dig the larger concaves. I lean toward 13/16+ these days, but enjoy the close-trimming ability of smaller Blades. A ladder must be climbed to find where you like razors and which grind. Personal Preference! You will see!