ruxton, I Micarta is hardly fragile. In fact, it is incredibly durable. Randall Knives have been using Micarta handles on their fighting and survival knives for about 50 years.
The only knock I have ever heard about Micarta is that some people feel it is too slick, but not in my opinion.
Like the Calypso, the Viele has VG-10 steel The Viele has a nice,low profile. I still would take the Military, plain edge, over either of those knives as a field knife.
I didn't like the Starmate, too thick for me. The Chinook is a great knife, but it is indeed, chunky.I happen to like the upswept clip point very much though. It is not fragile either.
"Chance favors the prepared mind" - Louis Pasteur