Interesting Luna "feature"......

[flots am]

That's a good argument for carrying a backup dive computer. What if you had to do a deco stop?

Then he would have learned why I print the plan for my deco dives and stick it on a wrist slate with packing tape.

Never trust a computer with your life. The technology simply isn't there yet in consumer devices. Even the space shuttle, which contained the most completely debugged and understood software ever created by humans has three redundant computers that "vote" on the correct answer when one misbehaves.

flots.