I tend to agree with the don't crowd on this one. You have a PPL and are continuing training - I don't see how much benefit they'll be in the long term. By the time you do the required hours for the CPL and IR I can't see you being short on dual hours. It also brings the question where do we draw the line. Looked at my old 3822, and have AEF flights in chipmunks when I was 13. Adding it all up I have 30 odd hours - all before I was 17. To log these I think would be laughable, indeed I hadn't even considered it till this post.