I have been noticing a lack of precision on size of the coffee grounds . I used to dial on espresso dash 3 or 4 , from right to the left to get the perfect grind for espresso . Now it is completely inconsistence and I had to go al the way to to the 8 or 9 dash in espresso mode and big grounds and little grounds are together : . Could it be the burs? Which one ? I have this machine since 2011 , working every single day, once a day . Thanks so much for your great help!

Coffee Makers & Espresso... - Breville - BCG800XL Grinder