After the top mark I steer the boat downwind and throw the tiller extension over the back. I reach forward hoisting the spi. The boat will round up gently but when the spi is halve hoisted the pressure on the spi (even when just flapping about) stabilizes the boat on the course of the moment. I then grap the sheet and move back and out, sometimes I grap the tiller extension but in reasonable conditions I leave it in the water and steer by the little tiller arms on the stocks.