Vern,
Stroking is generally a bad idea as it creates "faux bold", an electronic bastardization of the font. No human eyes involved.
Without trying to add confusion with using two different meanings of "stroke" in the same sentence...
...The weight changes are not applied appropriately or in proportion to the strokes of the letters (thin strokes being heavied up as much as heavy strokes by applying a fixed stroke around the letter forms. In addition, the width/height relationships need to be adjusted in small caps (generally, the width is increased in relationship to the height). Other letter components, such as serifs, are absolutely destroyed by electronic stroking.
If there is no true-cut small cap font that matches, then just as a good typographic designer would do, you have to do all adjustments by eye.
Neil