Routine...routine...routine. I believe strongly in routine with the snakes (nippy ones or not). If you stay consistent, handle the same way, in the same manner, refusing to let the snake dictate your actions and make sure you are very calm yet firm, the snakes seem to eventually get it to some degree or other. Some won't ever take to much handling, that's just being a snake.
When we were calming Brannagh down we had to find her unique "line in the sand". In other words, where was the point where we could gently push her into acceptance of us yet not go so far, so fast we made the whole biting situation worse. I think that line is unique to each snake and owner and you just have to be very observant and adjust as you go along.
~~Jo~~