I posted on the same issue with the Nimbus 10, Asics have definitely changed the heel cup in their latest shoes.
I've worn Nimbus for years, never a problem out of the box but the 10s were blister hell.
I've binned them after about 200 very painful miles, they never got any better. The padding in the heel cup doesn't seem to extend all the way to the sole, just the top half-inch or so, this was the problem for me.
Moved on to Nike Vomero (too cushioned for me) and now onto Nike Lunaracer - these might be perfect for me, going to try the Lunatrainer as well.
Posted: 06/10/2008 at 08:20