Skimmer Impeller Mod

[Der_Iron_Chef]

Has anyone modified the impeller, like the ones below, on their skimmer (in my case, the CSS) to produce finer bubbles and better skimmate? If so, what exactly did you use and how were your results?

I'm wondering: a) if the mesh material degrades/breaks apart over time; b) if it does, in fact, make a significant difference; c) if the mesh interferes with pump operation; d) if the increase in microbubbles is too much for the skimmer to handle, etc.

Any input would be great!