A number of years ago, probably over 30, I can remember my Great Uncle, who was a General Mechanic, and could fix just about anything built, tell my Dad to pull out the starter rope out about 6", and hold it lightly between two fingers before turning off his saw. So my Dad tried it. He couldn't believe how much recoil, and torque there was, when he turned off his saw.
My Great Uncle said to my Dad after he shut off his saw, "Now you know how much force is put on your starter, with the handle not being pulled out, and how much extra ware and tear your starter has to go through when shutting off your Chain Saw".
Ever since then, when my Dad shut off his saw, He'd pull out the starter rope, held it lightly between two fingers, and turned off his saw. When my Dad taught me how to use a chain saw at the age of 15, he instructed me to do the same.
7 years ago I worked part time in a dealership for Stihl, and a customer came in with a chain saw, with his plastic starter mechanism in pieces. It was an old Pioneer Partner. My boss was able to find another starter for his saw, and I told him to pull out his starter rope, before he shut off his saw.
There was another customer there getting his chain sharpened, and I was almost finished with his chain saw, ask me what was the difference. I told nicely, to wait until I Finnish his saw, I'd show him. When I was finished, I started up his chain saw and had him shut off his saw, like I instructed him to. When he shut off his saw he he was impressed, and was going to shut it off this way from now on, because his starter was made of plastic as well.
So I thought I'd share this with all you guys and gals out there. If you already do, that good, and if you don't, give it a try. How knows. Maybe you will like to try and save your starter. After all, it's a cheap repair. Bruce.