It's been over a week since I removed the see thru fencing to merge my young pullets (now a little over 10 wks)...

[aart]

So, the four Comets (pullets) still are functioning a bit like a sub-flock (from what I understand that means?).

Yep. The younger birds may meld more into the older flock's pecking order once they start laying.

So, I guess (???) things are going 'normally'?

Yep, sounds normal.

Your observations and descriptions are excellent.