I don't know Doc. The Origin 8's are pretty rounded? I went into this blind. I knew I wanted to quiet the knobbies on pavement, and I had read about the self steering issue, but I was NOT prepared for it the first time I experienced it.
FWIW, the 3" Kenda Flame tires have a pretty sharp break where the tread ends and the sidewall starts, and the self steering issue isn't bad at all.
I did try to dial it out using progressively more pressure, and it did improve, but I got up to 20psi where the ride is getting pretty stiff, and the self steering was still pretty apparent.
Make me an offer on a pair of Origin 8's w/tubes so you can see what's going on. Very few miles, new this past spring, and they're just collecting dust. -Al