I am working with data from an Elekta Neuromag system and I am not sure about using autossps. From the description of this tutorial https://neuroimage.usc.edu/brainstorm/Tutorials/TutMindNeuromag#Existing_SSP_projectors I understand that the autossps should rather not be used. But would it be an absolute NoGo, because after all the autossps were designed specifically for their own MEG system. Or is it a clear advantge to recalculate the SSPs? With the alternative to use tsss, as mentioned in the tutorial, I am myself cautious, because tsss, at least in my case, partly filters out important signal, such as the tremor frequency. I would be very happy about opinions about a proper handling of autossps or sources where I myself find more information.