New to Wreck and Cave is the opportunity to do 1:1 training with Rich Walker. You do need to have been on a GUE course in the past, but not necessarily passed. Take your pick from the curriculum on what you want to work on, and let Rich do the rest. He can work 1-to-1, or up to 1-to-3 to keep your costs down if you prefer.
Take a look here for details on how it works.