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Unfortunately this topic is not in a single thread, but is displayed... segmented into 2 parts (reason: I did not subscribe on the first post [in which I also CC'd the author of MSM], and had to repost (after subscribing).

The author of MSM (Monsieur Henry) has kindly taken the time to write a good response.
You can find it here: http://article.gmane.org/gmane.comp.lib.boost.user/84038