Piercings during pupillage

It's not so much the view of people doing pupillage as the view of Chambers in general that matters. It all comes down to whether or not Chambers (or those barristers/clerks that you ask) think it looks professional. Personally I can't imagine I'd have an issue with it or that anyone who matters in my set would, but then opinions will differ and I'm aware that I haven't actually seen them. The reality is you need to ask your pupil master or someone senior enough in Chambers to give a reliable view. I'd do that either at a pre pupillage drinks/meeting you have, or the first day of first six. It really isn't a big deal either way though. No one's going to judge you for turning up with piercings, even if they ultimately think you should take them out. So just turn up and ask.