After I wrote the last post I have been looking at report.log files and, if I followed things correctly, found something that could spell trouble... or not? I would appreciate it if you could advise on the following: To summarize: I am asking for post-stats on FEAT directories, say A.feat, B.feat and C.feat which ONLY include pre-stat+stats results in them. Mind you, said .feat directories represent analyses on different data and with different parameters. I wanted to perform the same post-stats on these .feat directories, so I set them to run all at once (and selected the Copy original FEAT directory..." option under the MISC tab). Here's the interesting part: I noticed that the report.log from the A+.feat directory has at the beginning a call to /bin/cp which copies some design.fsf file from /tmp (with weird names such as feat_J8YQFe.fsf) into the current directory. So far that seems OK, but... in the report.log from the B+.feat directory I notice that /bin/cp is now invoked to copy the design.fsf file from the A+.feat into the B+.feat directory. Same happens when the C+.feat gets created... apparently gets copied from the B+.feat directory. Is this of any concern, considering A, B and C are different data/analysis parameters? Should I instead only group studies for "en masse" post-stats that are compatible in their design.fsf? Many thanks for the help!