tommyz, You can't user that name. I had it first and I'm older than you:wavehand::lol2:
Brings back memories as all my teenage buddies called me that. I had a drill sergeant in basic training who couldn't pronounce my last name so he just called me" Z alphabet".
I use the hanah 713, full sized; it's very good consistent and reliable ovr the thousand or so tests I've run with it.. Would have gone with a checker but I got mine about 5 years ago before they made checkers. Bet the checker is just as good and much less expensive.