Chris,

I am not 100% sure, but I don't think that all 4 of these output transforms are required to exist.  I think it is command line input dependent.

I cant test because I am at a conference this week.  Go ahead and merge if you've confirmed that all 4 are mandatory outputs.   

NOTE:  These outputs are different ways to get the same transform (single file .h5 for composite, and multifile list for forward_transforms)

Hans