Toadstool moving, Good or Bad?

[powertodareefle]

Here's two pics of one of my toadstools.
It used to lay flat and now all the edges are curling upward.
The other toadstool did this a week ago and seems fine.
is this a good sign? I did feed Reef Gumbo this morning and the polyps are extending again as I type.

 

[S-t-r-e-t-c-h]

Sort of looks like it's about to split...

Edit: either way, the curling around the edge isn't really an issue. Things to be concerned about are areas that discolor or start to yellow or literally turn to powder...

 

[powertodareefle]

The other Toadstool is really curled up and seems fine.

 

[A Toadstool Leather]

They take all sorts of different shapes due to flow and lighting. It looks good to me.