> So, I'd love pointers to this (if anyone has seen it), or simply to a 
> known-good 10x scope probe schematic.

Forrest,

Silicon Chip did an 8-page article on probes last month

Teaser - http://www.siliconchip.com.au/cms/A_111671/article.html

I could make the whole article available for you, it's a good read
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