First off, thank you for the article.  It isn't very often that I get to read an article that really teaches me something new and explains something that has left me totally puzzled in the past.  That said, I think Chris' analysis is probably correct.  I saw cache misses, but not recompiles; and the capitalization of parameter names apparently doesn't have any effect on this.

I had noticed several years ago that one of our applications tended to generate many cache misses, but not a lot of recompiles.  Adding more RAM to the system helped overall performance, but not this particular situation.  I could never come up with a plausible explanation, this fits the bill.

Thanks again for sharing this bit of information.