They're not sore in the slightest, and feel healthy. That said, once I go through the plugs out, clean, oil, plugs in cycle they'll feel slightly itchy and irritated (though not painful) for maybe an hour after.
I went to a lot of piercing places before getting my 4mm piercings, and most of them were very uneasy about piercing at 5mm. In fact, 4mm was even considered too big by some.
To be honest, the win factor of being pierced at larger sizes doesn't seem worth it; the holes in my personal experience ...
Short story: I was pierced a while ago with a needle at 4mm, and had steel single flared tunnels put in with o-rings on the back as my newbie jewellery. The plan was to keep these in for 3 months for full healing to happen before any ...
In all honesty, I don't care for that look, so I'd say no. That said, I'm just some guy on the internet to you, so you probably don't need to weight my opinion too heavily.