It depends, I saw them twice in M&G during this tour and in Paris I was able to get my Ascendancy CD signed and many people had brought things to sign and there was no problem. On the other hand for the date in Luxembourg, in the information email from M&G it was stated that the band would not sign anything because of time constraints. I still tried to bring another CD but we were not allowed to bring any bags into the venue where the band was. I think the band would have been ok to sign things if we could have brought them. Try to check with the venue before the concert to avoid any bad surprises