Thx all. Here's the hands:
I bid what seems to be a pretty normal 3NT and suffice to say it didn't turn out well... (Teammates went 1 down in 4
♠ on a trump lead.) This hand brought me "visions of Cardiff", a european championship I played on, where the wrong choice would normally net you -1100 LOL.
I suppose the slight underbid of 3
♦ would be a possibility given match status. You don't need to overbid to generate swings.. you can do it the other way around