Just start on the left of the runway, point the aircraft slightly to the right of centerline (only if your on a wide runway) and you will have rudder control by the time you are pointing down the runway.
Thanks for the tip Tony! It is quite obvious really when I stop to think

I'll give it a go next flight. I fly from Blackbushe so plenty wide enough.
One of the guys in the share demonstrated how to start the take-off run from a perpendicular hold. He just opened the throttle to full and as well as accelerating did a sharp left and off went went! Not brave enough to try that yet