The 'Synchron Flyers' at Farnborough nearly didn't! Some members of the Flying Control Committee were opposed to having 'gliders' in the show thinking there would be no control over where they landed; they would block the runway for ages etc.
In fact they happily operated onto the 'LALA' (Light Aircraft Landing Area) next to the 'old' control tower.
Unfortunately this is now obstructed by an anemometer mast and hence no longer available.
They then normally did a 'dual tow' to return to Lasham although I seem to remember on one day they were put into trailers for the return.