So my tires just arrived today, the carcass is significantly different between each design where the Defenders offer more support (and weigh about 5g more per tire) suggesting they might not have as much tendency to balloon under hard acceleration (if I had to guess). It will be interesting to see how each wear when compared to my trusty DOT EVO tires... all are SOFT compound... maybe when temps drop this winter I might try SUPER SOFT but we're still in the high 80's to low 90's out here in Texas.
WASPER:
DEFENDER: