Gidday,
Instructors are usually born to the task, not created by the issuance of a rating on a new CPL.
Some who take the 200 hr and then go straight to a rating are good at the task, it's the training/monitoring/mentoring which makes the difference to the end product.
There are some long term Instructors who are a lot worse than some of the newer ones.
Attitude to the end result is what makes the difference, especially from the Instructor Training process which sets the tone of the process.
I am about to park my wide bodied Blunderbus after 43 yrs total, 37 in Airlines and go back to my old Grade 3 1967 Rating because I like the view and the Instructing process.
Back to basics will be a learning process, looking foreward to the fun and games, the landing competition is on.