For mine, I did not want to permanently install a skeg to my whitewater kayak. While the skeg helps with tracking, the boat is pretty slow as it plows through flat water. My wife can quickly and easily move faster than me in her rec kayak (Dagger Zydeco 9). I wanted to be able to quickly remove the entire skeg and baseplate and still use my boat on whitewater.
I cut four inch long slits in the base that the fin slides into to thread the tie down straps through. I used a dremel tool with a cut off wheel to cut the slits but the flexible plastic was pretty easy to cut. I imagine a sharp exacto knife or a hammer with a large flat blade screwdriver would do just as well.
I attached a photo showing where I cut the slits as well as with it installed.