Needle felting is more my forte when it comes to questions, though I do felt
traditionally.
For me a resist is what you call a "template", the piece that goes inside to
prevent the fibres felting together. I have a friend who makes roses by using a
piece of plastic as a resist to protect the fibres at the bottom. She felts the
top bits, then removes the plastic, rolls up the fibres into a rose and then
felts the fibres at the bottom to hold it all together. Don't know if that makes
sense????? Maybe that is what they mean, maybe it isn't! :-)
Possibly Julie could shed some more light on this, traditional is certainly her
forte.
Sandie :-)