Hi 
I am running an analysis pooling resting-state scans from 3 studies from the same site (conducted on the same MRI scanner, but with slightly different acquisitions). Of the three studies, two have fieldmaps associated (one with a directly acquired B0 map and the other with blip-up blip-down EPI), whilst the third study has no fieldmaps at all.
For consistency I am wondering if applying a fieldmap-less approach (using --force-syn-sdc) might be the best practice to ensure consistency across all sites?
Thanks