Good point jxk. Also, on the more technical side of it, also ensure your feet reach the rudder pedals.
We were arriving one fine day, in a lovely open cockpit bi-plane, me flying from the back, owner in front. 'I have' came the shout from the front, as we went over the boundary fence. I gave it to him instantly. We touched down, ground looped, straight into the field at the side of the runway.
It all went by in a strange slow motion effect. WTF, I shouted as we came to a halt. He had not adjusted the rudder pedal length in the front cockpit, and his feet could not give enough purchase to grapple with the crosswind, that sent us ground looping.
Sky God Pride hurt, pretty embarrassed, but that's tail draggers for you......