The Devon gyspy style is a bit more freeform than the Bob Cann/Les Rice style. Have a look at Tommy Orchard stepping, here:
http://www.youtube.com/watch?v=yDGLF1kMoW4. He has learnt from his family traveller tradition. If you go to the Dartmoor Folk Festival, you will be able to see both styles. Enjoy.

Tradsinger