I learned a long time ago to keep people out of my plane, so a lock will be on my latch for the tip up, simple, drill a hole and insert lock. I don't want anybody in my plane, yup, I know, the lock will not keep out people that are desperate, they can break the canopy to get in. I want to keep the honest people out... honest. Never fails, if there is an open door, in people go. So if it's locked, even with the cheapest lock, people stay out, that's good. The last time I left a door open on my airplane, every switch was on and all controls messed with, no thanks. Oh and I have a push button start switch, very cool. Oh one last thing that helps a bunch, a cover over the canopy, what people can't see... well I think you know what I mean. If I'm sitting around the airplane, off comes the cover, they can look all they want, just don't touch.