My tires are better than your tires
Well, maybe not. :p
But when a company claims to make a 42mm tire with the same casing as their top-of-the-line racing tubulars, well, you have to try it. I honestly can't tell if they're any faster than the "standard" Hetres. They might be, but really, any advantage is lost in the noise of daily fluctuations in form, winds, phases of the moon, etc. They certainly are more comfortable than the standard version, which surprised me. The standard ones are already like marshmallows, but the Extra Legers do actually smooth out the ride even further. Are they worth the extra $20? Well, for me, yeah, I guess so. One more evolution and we'll be in $100/tire territory...