Hi Ricky,
The -no_ss option is not all that optional.
Here is a table of when you should and should not use -no_ss
Temp. WITH skull Temp. WITHOUT skull
Dset.
WITH skull -no_ss xxx
WITHOUT skull No Cigar -no_ss
Temp. means: Your template of choice
Dset. means: Your anatomical dataset
-no_ss means: Skull stripping should not be attempted on Dset
xxx means: Don't put anything, the script will strip Dset
No Cigar mean: Don't try that combination, it makes no sense.
You do not need to stick with the skull stripped TLRC-ed output. Once you know what the transform is, you can apply it to any other dataset (including the skulled anatomical) with @auto_tlrc in usage mode 2.
cheers,
-G