RHO opens 2NT, and plays 3NT after LHO shows some interest in the majors and RHO denies interest (the exact auction varies by table; some may have started with a Polish club or a strong club but I don't know what happened everywhere).
My normal rule at matchpoints on this auction is to lead from a 5-card suit if I have one, or else try and go passive. Great rule, but this hand doesn't exactly have a passive option.
One good thing about the electronic travellers used (the Bridgemate) and the barometer format is that you get a detailed printout a couple of rounds later showing the contract, the lead and the result at every table. So you can see the lead chosen by all 26 "experts" in this position in the Open Pairs final.
Anyway, I know what I chose. What do you lead?