Phal with floppy, shriveled leaves...again

[The Mutant]

Geez, what is it with me and mini Phals with floppy leaves! I'm watering them to death apparently!

So, a second of the mini Phals I purchased for about two months ago has been afflicted with the "floppy leaf syndrome". While the first one I had problems with (it had practically no roots) seems to be on the road to recovery (it was anyway, until Pelle pulled it down, twice - it's rather mangled at the moment so I hope it'll put out a new leaf as it has with done with a root), the one that has been in the best shape since I got them, has started to have floppy and shriveled leaves.

Since I figured that it's probably caused by too frequent watering, I checked the roots but didn't really find anything that should cause such a depressed appearance, it has a fine root system. I also checked the stem in case of stem rot but came up with nothing, and it's the same with the leaves.

I re-potted it in a bark and perlite mix instead of bark/sphagnum/perlite that I usually plant my chids in, this to hopefully increase the air flow around the roots.

My question is, should I cut the spike? The spike is the only thing growing on this Phal at the moment, and since the rest of the plant is struggling for some reason (probably a watering-happy owner) I want it to re-direct its efforts elsewhere.

Here are some pictures. The tiny leaf is no new growth, it has had that one since I bought it and I don't think it has grown one millimeter since.