new Milt. hybrid repotting question...

[Lady Tottington]

Hi all! I just received a beautiful Milt. hybrid and it has 9 flower spikes on it. My question is that I took it out of it's pot to pot up in a very slightly larger pot and noticed the roots are packed internally with moss. I understand this is called s/h, and I'm wondering if I should just continue it like this (as it appears happy enough) or should I remove those and plant in a bark mix?

Also, what is the timing of when I should do this, considering there are several flower spikes on this plant?

Thanks all!