Completed the second part of the PfCO course (Flight Training) after completing Ground School last year. Just as before the extra investment in Flyby Technology is borne out by the quality of the instruction and the skill of the trainers. I would compare training with Flyby Technology is like the difference between doing "the knowledge" as a London cabbie, as opposed to just doing "minicab" training - there is no comparison - the depth, thoroughness, and quality is far higher - and I know other PfCOs who have looked jealously at the training material and other servers you get as part of the FlyBy alumni.