TRS30
Head Pro
Taken from the R&A Rules:
8-1.Advice
During a stipulated round, a player must not:
a. give advice to anyone in the competition playing on the course other than his partner, or
b. ask for advice from anyone other than his partner or either of their caddies.
PENALTY FOR BREACH OF RULE:
Match play – Loss of hole; Stroke play – Two strokes.
I didnt notice it as I was in the kitchen, but if you're correct then thats very out of order. That said, its just as much Luke's caddies fault for giving him the information!!
Edit: just read that properly, and it seems you can ask for advice!! Hmmmmmmmmmm, is this another grey area?
Is an interesting one Keef. So a player can't ask another player what club they used but one caddy can ask another caddy?? Sounds like a grey area to me, if its correct.