Daytona 16520 A vs U serial

[Lalaji]

With similar pricing,watch only 16520. Would you go for A serial or U serial?

I heard A serial is rarer, it uses luminova with Swiss Made at 6 o'clock position.

U serial "T Swiss Made T" dial should have larger production, it uses tritium, the lume could turn yellow.

For the three circles, I am not sure these two serial could turn color to "Patrizzi" at all, as I heard only s, w, t etc serial could do so.

My final choice was A serial. Would live to hear what other people.might think. Thanks