If you are referring to the half oval pin bases on the 3 pin click ring, the CFs are like all gen-spec and gen click rings. The inside curve has to be round to fit inside and slide past the crystal retaining ring scallops. I've never seen anything different in a gen-spec GMT 6 digit bezel assembly.
If you are referring to the pin itself, those could actually be square but that would unnecessarily impede their movement in the rounded oval bezel slots where they fit. I've seen some rep pins that aren't nicely finished but never ones that aren't round. Could be CF had a batch where the pins were square, if so it is those pins that are the anomaly, not the ones you pictured.
Thanks for the answer mate.
I meant the shape of the three half oval pin bases.
I my batgirl apparently clean v2 are not rounded.
In my pepsi clean v2 are rounded like gen.
I wanted to try the aliexpress or gen click ring but i don't know if they are enough to achieve the "gen like" rotation leaving the other parts stock.
I never turn my bezels so it doesn't matter for me but i was curious.
If i can improve it with a single piece it could be affordable.
Anyway i can say that i found two different scenarios about bezel assembly on two "theoretically" identical watches(clean v2).
What i can confirm for sure is that gen xtal has to be fitted with stock clean gasket(shaved in order to obtain the gen crystal height).
I also noticed that gen pepsi/batgirl could has different crystal height, maybe it depends by which gasket the Rolex watchmaker uses from the crystal package during the assembly process.
Last but not less important is the space that gen crystal leave between insert and crystal that stock clean crystal doesn't.
Nobody cares about that but in my opinion is an easy tell on the stock rep.