My advice is.... Never underestimate "Your Type" of woman
Your friend obviously has mastered his type of women. It takes years to know what's the perfect type of girl for you
For me, I know the type of women that attracts to me organically, so I know what i'll be successful at. Some guys score with the party girls, or the librarian type girl, or the shopper materialistic girl, or the artistic girl. Your friend has a type of women he knows he's the best at scoring with, and just goes after those type of girls repetitively, like a hammer to a nail.
Just think, if you know you're the best at basketball, but suck at football and baseball, why wouldn't you just play basketball more often, cause you know that's the area you'll win more often?