I was exempt from F5 but my P3 knowledge is current and good, I want to give P5 a try this September, will I need to revise/listen to F5 lectures in detail in order to get a good grasp of P5?
Probably a good idea to read through the F5 notes to refresh your memory and to make sure you understand the basics. It has presumably been some time since you studied F5-type material.The P5 syllabus does repeat some F5 topics, but F5 notes will introduce you/reintroduce you to them.