Tolumnia blooming again!

[NYCorchidman]

This is one of a few Tolumnias (mostly Genting something, then one Pink N Pretty and one Popoki Mitzi) I got in the summer. The name tag for this one says Genting Orange. I think it should be called Genting Yellow or Lemon as I don't see any orange in it at all.

Anyway, it had many little bright lemon yellow flowers in August. then it kept making more and more flowers til now! It is not fully open but I was very delighted to see this bright yellow flower opening and thought I would post a picture of it.
The back of the petals have some dark spots.

I ripped one withered dry leaf at the bottom of the plant and I found a new growth emerging.
All the other Tolumnias here have stopped flowering and are growing new fans. They all came in this super tiny clay pots, which is more than full of roots and I'm not sure what to do regarding repotting them.
It looks like if I were to take them out of those pots, the roots would most likely get damaged very much as they are all attached on the surface of the pots.

Can anybody share some successful Tolumnia repotting stories?
Thanks!