many drove & drive without seatbelts, many smoke like crazy and many are still alive, some not... Doesn't mean that it's smart to do...

That's why I wrote my 2 cents.. do take care of your legs and life as you want, nobody will tell you to do different!
Just wrote the facts and what I saw in the last years rebuilding 727...
By the way, yesterday I took apart a stock 727 from a stock engine, damaged sprag & big long crack in front clutch retainer. Clutch retainer wasn't overheated or scratched! I guess that thing already saw enough RPM to start cracking... guess he was lucky...