South North
1S - 2C! ( Edit: I took this as GF when OP said "bascic 2/1" )
3D! ( Edit: Thus, 2D would be forcing so, 3D! = "jump-over-a-force" = splinter for last bid suit )
Now North may not be so anxious to rebid 3NT.... and start cue-bidding.
And when a minor (m) suit is agreed at the 3-level, then 4m! is Minorwood ( RKC )... 4C! for this auction.
But when the minor is first agreed at the 4-level, then Kickback ( 4m+1 ) is RKC.....
that is if you play those conventions for the minors.
This post has been edited by TWO4BRIDGE: 2011-September-03, 07:43