As always, another beautiful snippet from . OP, please do understand the underlined message in Xia's latest code: Fyear is taking priority over AT, meaning the most suitable AT was chosen ONLY from those of the same Fyear, and it was chosen ONLY on individual bases instead of group bases (which requires a lot more coding IMHO). This is the approach with the least effort by far but make sure this is what you are expecting. Regards, Haikuo
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