Euphorothane (otang) Vs. Landyachtz 'thane (zombies)

I was just wondering if the urethane was different between these 2 wheels. So say if I got an 80a Zombie Hawg, would it be the same as getting an 80a...

Source: http://www.silverfishlongboarding.com/forum/general-longboarding/251334-euphorothane-otang-vs-landyachtz-thane-zombies.html

durometer bushings longboard wheel sliding carving