Greetings, Daniel--
At last circling back to this conversation and trying out your proposed fixes. I'm actually going to try out all of them on the full set of difficult data and see which one wins. In this context, three questions / requests for clarification emerge:
First, I'm assuming that T1_ns.nii means the SkullStripped T1?
Second, what does epi_am_un.nii.gz refer to?
Third, and the only substantive question in this list, is what is the least biased way for us to decide which approach wins this competition? Would it be the Dice coeff of the native-space anatomy and aligned EPI for each approach?
Many thanks!
Paul