Yes I have downloaded it but have not opened it yet.
By coincidence?, a Digital Tuters post about RealWave in Real Flow was posted between your posts. I have just downloaded the four free movies.
I have the light version of RealFlow but, watching the movies just slightly as they were downloading, I can see the potential for a lot of approaches which could possible be applied in Carrara.

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WOW, you have all given me hours of experiments to work on.
Thanks.
Brian

bwtr