Thanks, I have downloaded the manuals for both, the only downside to the Z21 it doesn't support consists, they say it will be available soon. I'm only thinking about it at the moment it will be a while before I get one. i want to make sure the one I get will do everything I need as I don't want to change again.
I'll have a look at the Gaugemaster.
Cheers:tumbsup: