100 hrs post passing test is about right to really feel comfortable. The more I did the more I felt comfortable with the various exercises. I did it for 10 years some days thing s happened which made me feel I just started. The students that make you feel most comfortable are the most likely to give you those days.
Miss it really some days its fun and people you meet on the whole are great.
What it taught me was actually how clumsy I was flying the aircraft before my FI course.
But eventually you do feel very comfortable doing it, when youre are the most proficient at it is probably when you're had enough of it, shame really, pay bloody awful I understand now some doing it for free, so you can't complain about the pay as there isn't any, good tactic !