Usually when people use the term "internal temp" they're referring to the meat. Sometimes people will refer to temp "at the grate". When people just call out a temp without specifying (such as 250) I assume they're referring to the built in therm in the lid.
But if someone is discussing temps from, say 120-200 degrees, they're probably talking about the meat (unless they're having a problem).
You really have to ask to find out. I always mean lid temp when referring to cooktemps - but I never use a built-in therm (even if the cooker I'm using has one; well, if it's my cooker, I remove it).
If your referring to Chris's recipes on the top page, than I believe those are measured at top vent or lid.
Like many others, I prefer to take temps at the top vent. Consistent and always accurate IMO
Tim
No, I wasn't referring to Chris's recipes, just everyone's in general. I suspected that the temps quoted were at the top vent, but wanted to make sure. Makes quite a difference. Thanks to all for your responses.
Actually it doesn't. Well, then again, if someone uses grate temps and says so I'm always a bit skeptical of the temp reliability. But any real or perceived actual difference between vent and grate doesn't matter, and many, imo, waste time worrying about it.