>I'm curious to see which way everyone would go with this. The main
>criteria are reliability and production cost. And each way has its merits.

When working out failure figures for space electronics, it is the number of
solder joints that dominates the failure rate. NASA have some charts which
we use to come up with reliability figures, which are based on fixed failure
rates for component types when using MIL spec components. Check this URL to
see if there is info that will help you. http://misspiggy.gsfc.nasa.gov/
(yes it is a real NASA site) ;) I do have other URL's if this doesn't help.

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