Hello!

Recently came across a few dimmable CFLs: A Sylvania CF24EL/Twist/Dim and a Westinghouse 15Minitwist/Dim/27/3. Lovely CFLs.
Putting them through some dimmers I got at the ReStore yielded less than promising results. The Sylvania cleanly dims 100-70, but the Westinghouse buzzes and flickers angrily.

Which brings me to the question, which dimmer brands/models work best with dimmable CFLs? I'm wagering most dimmers on the shelf today that are "LED Compatible" should work fine on CFLs, but I want to make sure. (Mostly since a lot are still triac)

Can not recommend you an American model, but generally, try a modern Chinese made MOSFET dimmer. These have some advantages - firing timing is controlled by a microcontroller, and is not dependent on the load behavior, locked directly to line cycles, also you can choose leading or trailing edges. Get one in a white brick style with 1-10V control, for 230V these were rather cheap, American voltage probably too.