All of a sudden, the roasting times on my I-Roast dropped by around 2  
minutes.  Using Tom's profile the final 460 roast is around 3 minutes  instead of 5 
for a city + roast.   Tried two different coffees,  thouroughly cleaned 
screens.  Took bottom screen off....nothing blocking  inlet.  Anyone else experience 
this? 

No.  Do you monitor your line voltage?  If so, did it increase?  Is everything else the same as it was before? 
-David
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