Bear in mind (as if it's not confusing enough) that Silva (of Sweden) markets their compasses in the USA under the Nexus brand. (As previously mentioned, they also own Brunton of Riverton, Wyoming.)

The "Silva" compasses marketed under that brand name in the USA are actually made by Suunto. (All this is a result of prior contracts and legal obligations concerning the exclusive marketing rights of Silva (Sweden) compasses in the USA.)

I would also stick with a baseplate model, for all the reasons listed by others, but also for training the scouts. If you have a super gizmo compass, and all they have is a plain old BS baseplate, when they have trouble finding their location (and they will) , they will rationalize that it is all the fault of their compass. They will be sure that if they had the super duper one you have, all would be a snap...

Thanks to all who have replied. Once again I am reminded why this forum is so different and useful.

I have decided to stick with the baseplate model and am leaning towards a needled compass instead of the Eclipse. Although I have sent Brunton customer service an email asking their opinion in the max. altitude they recomend for their product. I will share their reply with the list. My inclination is to not bother and chance it. After all, what good is the promise for a replacement capsule midway througH A 12 day trek when I'm standing atop of Mt. Baldy at 12,440 ft.?

Here's their reply:

"Bill,
You should have no problems using the Eclipse at high altitude. There were some manufacturing changes to help eliminate bubble problems which are unfortunately inherent in the compass industry. I should mention two factors to consider, If a bubble did develop, the compass is still accurate and usable. Second, all of our compasses have lifetime warranties against bubbles as long as there is no physical damage, you would only have to pay the $5 for return shipping. Feel free to contact me with any other questions.
Best Regards,
Andy "