Thanks for prompt reply Roger!
Wind was almost cross shore, but very slightly on shore, say 20 deg.
The problem I am describing is the transition move between "waiting at the bus stop" , coming in , backside, and going DTL.
One has to change from going upwind to going downwind.... and I was cocking up this transition .... ending up running away from the wave rather than heading along it.
When underpowered and cross OFF... I pull the sail windward, balance the mast foot and the back foot in the strap, weight the back foot and "squirt turn" the board so that I am quickly facing "the other way" and heading down the wave.
This seemed to work when underpowered the other day but all went horribly wrong when over powered.
How to do this turn when overpowered?