Originally Posted by gsteinb

Compliance is a meaningless term for people who want to pretend they're connoisseurs. "Yes, it has a delicate hint of unicorn tears emboldened by the aftertaste of dragon feathers."

A few pound difference in tire pressure or a wider tire will make a significantly larger difference on the feel of a bike.

I've raced both the ISP and non ISP version of the same bike and not seen the smallest difference.