1. How do you know there is no more than 150 pieces?
Because they did not cheat with the movement. It was unacceptable that they used the XXIX if you knew what a XXIX was. But look at all their references and the only PAM with the XXIX is the PAM318
2. With all their claimed controls, 150 pieces were checked for quality control and off to the market, claimed COSC certified?
the COSC certification alone is an enormous issue here, I am sure the COSC organisation would love to know and see those mouvements...
uhmmm, NO, they NEVER said the XXIX was COSC. Not 2.5 years ago when they offered it and not in the documents that come with the watch
3. How did they come to have 'those' movements in stock?
Don't understand you question but doesn't every movement OPI OPII OPX OPXI looks like this before they did their modifications ?
4. Are you sure you can be so sure, 100% it will not happen again?
No, I am not but since they are willing to replace all the XXIX and when you see how negative and how huge the reaction from collectors, paneristi and other watch enthusiasts was... wel I'm pretty sure they won't dare to make that mistake ever again