Update!
The front continued to leak forever while I was dealing with warranty/return/seller stuff.. eventually it stopped. Because it was dry. Added another 2 ounces, and it renewed spewing just as vigorously.
The rear has been rock solid, leaking down about the same as a butyl tube if not better.
Got a replacement today, and the quality control seems better - seated right up, no sidewall or tread bubbles at all on initial install.
Only 80 miles on them so far, so no report on puncture sealing yet.
Here's some pics of the defective front tire when I pulled it off - the sealant was definitely doing its best effort, tons of accumulation along the chaffing strip/bead area. It was also coagulating over time - a vigorous wipe down didn't peel it all off (2nd pic)
