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					Originally Posted by Mister Moo  The Rancilio Silvia was the grail for home espresso for many years.  As bigger, heavier, fancier-schmancier more temp. stable machines started getting attention for home use (at half-again or more the price of a Silvia) some of the gloss fell off "old reliable." 
Then the smart coffee-dweeb boys starting putting PID (Proportional Integral Derivative) controllers on their Silvias  for much less than the price of a fancy-schmancy new brewer and claimed results equal to perfection.  What's not to like about perfection?  Add $300 to a very good machine and have a perfect machine.
 
I have considered putting a PID unit on my Oscar now that some pioneers have shown the same results can get had with PID'd heat-exchanger espresso brewers, too.  The coffee has been fine but, again, what's so wrong with perfection? | 
	
 Just started reading on this.  Heard about it for years, now I am curious!  On the fense whether to try this or sell my grinder/machine set and just go new.  The upgrade I would want is around $3K...