These are surprisingly compliant, running them at 38 psi right now - may adjust the pressure a bit anyway. I was concerned about E as well (had previously posted here seeking feedback), turns out to be a non-issue. Suspect it has much to do with the brand/construction/composition, but my concerns were unfounded.
The AT3's were so far out of round, it was absurd - and this was 2 different sets of 4 tires. According to the upper limits on 2 Hunter road force variation machines, the rims had almost imperceptible runout (0.002" if I recall), but the tires were around 2X acceptable runout. Ultimately ended up with 1 tire with 14oz, one at 9.5oz, one at 6oz, and one at 4.5oz - and they still weren't close to right. They also presented characteristics very much like flatspotting when sitting overnight - I'd ride down the street from my house, felt like square wooden tires. Lastly, the tread was very squirrelly and they'd follow every single imperfection in the road.