Problems watering orchids in sphagnum moss

[Bafflepitch]

Did some searching here, but am still confused.

I have had three orchids for awhile (one paph, odontoglossum, and a cattleya). They are all planted in a loose bark and do well with my watering schedule. I try to use 2-3x the volume of the pot in distilled water when watering.

I recently (7 months ago) bought a Jewel Orchid and it came in Sphagnum moss. I didn't know much about it and kept the same watering schedule. Well... Sphagnum stays wet a long time! Well, the Jewel orchid has seen better days.

The main plant is, well, gone. There is a small bud that is growing leaves that I am hoping will keep going.

I then got a Phal (not getting up to get exact name) and it showed up in Sphagnum... sigh. I tried to adjust my watering and let it dry out a good bit between, but it doesn't seem to be doing well.

I was just given anther Phal and it also came in Sphagnum moss.

Now, if I can't get this straight I am about to replant all these in a bark.

How do you water Sphagnum planted orchids? Just water lightly and not flush the pot with water like a bark planted orchid? Do you let it dry out really well between watering? Or just water very lightly?

And do they need to be in Sphagnum? I really like my bark.