GIB to switch to your suit even after you have overcalled in it. Would I be better of Playing Q♣ or
J♥?( this hand was with the flash version)
It would seem if its running simulations on defense that the only chance to beat the hand is a heart return.
If East is 3-(0-1)-(6-7)-(2-4) then south is getting squeezed in ♥♣.