I am planning to do the CAST in Communication but I hesitate between FG III and IV. I know you can access FGIII having FG IV. However, I have been told III is easier, but the exam is the same, is just about the requested marking I guess. However, I do not see a huge difference in the marking in between FG III and FG IV, right? Is it really that different regarding the difficulty?
Thanks in advance.