Bad fish or really bad fish?

Is this fish a S. Verrucosa or a S. Diabolus? I have trouble telling them apart underwater (above too apparently).

This is another one I found in July nearby (much larger too).

This is one from this past May but also near the location of the other two. I am not sure these are all the same species but I think they are.

I think it's S. diabolus which is humpbacked, something we can see very clearly on both fish. S. verrucosa isn't.

I say it's a S.diabolus, take a look at these examples common around the Andaman Sea.

http://www.spencerfinn.com/Albums/Rock%20a...idae/index.html