Miltonidium Potting Medium

[JenHowlett]

While on "vacation" this weekend, I purchased a Mtdm Rosey Sunset 'Pacific Satin' at Home Depot. I couldn't believe it, but its a huge plant (its bursting out of its 6" pot), has two spent spikes, four more still full of blossoms, and a dozen new growths (I can't believe the kind of great shape its in!).

Anyways, I know that I'm going to have to repot it. I've done a little internet research, but there seems to be inconsistencies in the recommended information. Its currently potted in straight (and very compacted) sphagnum.

First, should I repot now, or wait until its done flowering?

Second, what should I repot with? Sphagnum again, or the same bark mix I use for my phals? Should I mix the two? One website recommended using a paph (more normal kind of soil) mix.

Any other information you can give would be appreciated. I'll get photos posted as soon as I can.