For me, I carry modern exclusively. My wife bought me a couple nice slipjoints in Europe with horn handles, and I just couldn't deal with them floating around in my pocket, front or back. I like knowing exactly where my knife is at all times, that it is tip up or tip down, and just being able to grab it. So while I admire the simple elegance and classic aesthetics of slipjoints, carrying wise, they are just not for me. You can also find plenty of modern folders that have no "tacticalness" and may suit your tastes better. There are lots of very plain/simple ones.