If it's written on a blog, it's certainly true, then?
You can see a pic of said motors here: http://www.humanbirdwings.net/wp-content/uploads/2012/01/Tim...
If you've identified a noise problem in the signal -- the only possible reason to go directly after another commenter and expect that you're improving HN at all -- how does spamming yet more about the noise problem improve the situation for anybody?
Thanks for reminding me why I don't contribute to HN, by the way. I'll show myself back out.