In reply to Denni:
I've ended up with several compasses, a couple of silva ones and a couple of budget brand ones and they all work tbh. Would be happy relying on any of them. I like my silva expedition s best though, find the mirror useful when trying to take precise bearings.
However I'm not that impressed with Silva quality control or design. After purchasing the silva expedition s it got a massive & growing air bubble in it after only a year, was replaced under warranty though. I had to dremel out a section of the mirror box thing to get it to close properly over the bezel too.
I would have got a Suunto mirror compass but had read various reviews of people having issues (like large growimg air bubbles after a short time) with them too - seems you can't win these days!
Post edited at 11:31