I've never had a mechanical mod and know little about them, but can't you put in a kick then have protection and regulated voltage?
I don't know how much protection kick offers, but yeah, some sort of fuse is a really good idea with a mech. I bought a Vapesafe2 fuse to use with my K100, and I'm pretty sure I've never needed it, but I don't regret it. I'd love to try a kick, but I'd need a mech that has room for one with a 18650. The Smoktech kicks can be had for under $15 (cheap!)