Something like 98 to 99% of prints worked out. When I wrote the piece, the moments of failure shaped the process and my approach, and not representative of the average print.
For the most part, my X1C + AMS set up was just plug and play, and I tried to use the Celtics print as an example of pushing that system beyond what it could do, and how struggling through that lead to specific adaptations in the process.
My focus was really getting prints out the door to hit shipping windows, so delays were felt by the customer and the reputation of my partner. Just the overall production pressure, it's a different experience than most prints I do for fun, where a failure is an opportunity to learn, and there's time to try alternatives.
As for the 0.2mm clog, I'm nearly certain it was an issue with the specific roll of filament I was using, Overature Matte PLA in the "forrest" green color they have. Other colors in that print worked. Usually PLA clogs are cooling issues, but optimizing the print profile would have been a big slow down.