Thinking about replacing my Foursevens AA flashlight that has been on my keychain for the last few years. I'm looking at going with something smaller and lighter like the Rovyvons and thinking of either the A4 or A8. I like the features of the sidelights on the A8 but like the titanium body of the A4. Anybody with both or have experiences with both these lights that can comment? I'm thinking the plastic body of the A8 may look and feel cheap? Any other small recommended lights for keychain along these lines?