[StuartC]

but is it any good as a dive comp?

I've got a Vyper and dive air or nitrox to suit the dive, but am not doing any deco diving, although this may change in future.

I do have a dead computer in a cupboard, so am curious as to whether it's worthwhile getting some value from it, or keeping my cash towards other shiny things instead.

Having a 2nd comp would be useful backup, but then that's what my buddy's for!