Originally Posted by Psimet2001

Yeah... mileage on parts on bikes really doesn't do anything for me. On all components it's so different. Personal variables, terrain, weight, riding style, etc. Then to top it all off there's the je ne sais quoi - the variable that no one can explain. Like the mystery variable that leads some people to get more flats than anyone else in their group even with the same tires, pressure, weight, etc.

All mileages with regard to performance, should be given in "less than, about the same, more than, around twice more" terms when comparing to previous use.

In this case the OP could have said "At this point I have enough wear to imply I might get between 35-40% more wear out of these than I do out of Conti 4000's ...YMMV" but what fun would that be. It's way more interesting to argue about minutia over the internet.