i recently went on a letterpress weekend course. it was great and i am converted although it wasn't difficult as i love using type anyway.
i had an epiphany moment and started using stitch and masks which i was really pleased with. i used a Ramie that i had painted with fabric paint and then starched so it was nice and crisp, ideal for taking print.
i also used some abaca 'paper' to print on which also worked well but there had to be less pressure on the press otherwise the fibres broke.
organdie also worked well and i discovered that taking a second pressing onto paper after it had been printed onto textile gave a weave print.
i am using some of my results in my latest work so watch this space.