BET settings

Hi all, I was having some problems bet extracting some of my structural scans, I was getting a lot of left over neck that was screwing up the alignment. I noticed the current version of bet has a new option flag (to me at least), which focuses on cleaning up the neck. The option is -B . When using this flag the processing takes considerably longer, something along the lines of 10-15 mins per scan. However, not only did it resolve the issue, but the resulting image looks cleaner and more precise than I would expect from a normal bet. I've attached a comparison image so you can see the effect. I did similar comparisons running this flag with functional data and it also shows improvements. At the moment I'm re-processing my data files in this way before running my analysis. I thought I'd mention this in case it might be a useful option for other people to use, but also in case anyone knows any reason why it might be problematic. I'd be keen to know if anyone knows of any reason why I shouldn't use it? I notice the overall intensity seems slightly lower when this flag has been used, is this likely to be a problem? Cheers, Chris Racey