We agree.
I've already asked my asia (slider/HGA) team to give a solid commit to the B3 child lot timing and drive intercept (I don't yet agree with their dates as we requested hot lot). If we can, I want to introduce the B3's to Gen2.3. If not, those are the only builds we would substitute in CT9. (on the new AAB of course).
The others they commented on were open spec build (Must be B3) and the B3 checkout builds (WQ timing must be B3 and ET data reviewed prior to HSA).
I asked them to confirm those dates overnight so we can decide if we substitute T9 for Gen 2.3 builds.