phal with no more roots

I have had good results saving 3+ rootless (and pricey meristem) phals with a modified sphag & bag. Because I think the bag can make it too moist and encourage mold and rot, instead of using the bag, I misted the leaves several times a day with a drop of SuperThrive in a water bottle, and the top of the moss about once a day. Before that, I sprayed the stump with physan and dusted it with rooting hormone. Then, using moss soaked in a Superthrive mixture and then squeezed out like a sponge, I potted the stumpy plant in loosely packed moss and kept it in a lower light for a week or so. I used a little fertilizer, too, just a few pebbles of time released Dynamite at first. It took a while, but they've all come back from being rootless or having only one sickly root. I don't know how important the Superthrive is, but it claims to help shock and promote root growth, and since my experiment was successful, I can't say it didn't help, either.
Liz

Guess what?! the phal with no root is sprouting a new leaf!!! and it still has no roots - only little stubs which i cannot tell if they are growing because the tips are not green or red or look anything baby new - and the lower leaves are still creased and yellow! so strange. maybe this is a strange kind of species. there is a tag but i cannot figure out the handwriting. it looks like a species phal. yellow with i think red lines, not sure the last time it bloomed was last summer.

strange, right? i hope it knows what it is doing. i am still keeping it in the bag. i just try to keep it upright with a prop with its rootless stem buried in diatomite, in an s/h setup.

any suggestions welcome.

thanks