[Freesurfer] -clean-* flags

Hi,

I was wondering if the -clean-* flags should only be used when you've performed manual edits on your volumes, or if they are also necessary when you re-process your subjects?

For instance, let's say I edit the Talairach transform and run the entire recon-all process (using the -all flag) on a subject I had previously processed using the previous release of Freesurfer. If I had done no other manual edits on volumes such as brainmask.mgz, wm.mgz, etc., will these volumes be automatically overwritten when I run the latest version of recon-all, or do I need to specify the corresponding -clean-* flags in order for this to take place?

Thanks,

Gabriel