Quick Question re: Sphag and Bag

[butterfly_muse]

Morning, everyone! While I was out today, I stopped by Lowes and hit their clearance section. I grabbed one orchid, as its roots (what I could see of them) looked good and it was shooting out a new leaf.

Annnnnnd then I got home, soaked the spag (it was completely dry) and found out the roots had actually hollowed and the whole orchid's roots were just..gone. And, on top of that, it was actually two separate orchids potted together.

I researched on Ray's website and have decided to try sphag and bag since there are no roots left on one of them. They are currently soaking in warm water mixed with some KLN root hormone, and I will leave them there for an hour, as specified on Ray's site.

A couple of questions, however:

1) I don't keep sphag (my orchids are potted in bark), so I was planning to use the paper towel method. Do I just moisten the paper towel once and leave it there? Or will that dry out and do I have to re-moisten it over the course of a couple of weeks?
2) The smaller orchid, the one that is pushing out a new leaf, has..I think two really tiny roots on it. Like half an inch long at best. Is that a candidate for sphag and bag too, since it HAS roots, albeit they're really kind of dinky??

Any advice would be greatly appreciated, I have never done this before.

Thank you!