Dynamic balancing o

Hey guys, be honest, who among you has done shaft balancing? And more importantly, did you see any improvement?
 
I read here  that says without balancing, my car might break down eventually. But so far, it vibrates but keeps going. Maybe it's just a myth - harmless but pointless?"
Article : <a href=https://scholar.archive.org/work/5gcc6eump5bftozhcq43avkklq/access/wayback/http://www.musicnews1.org/go?https://maps.google.com.ua/url?rct=j&sa=t&url=http%3A%2F%2Fimages.google.ml%2Furl%3Fsa%3Dt%26url%3Dhttps%3A%2F%2Fvibromera.eu%2Fexample%2Frotors%2Fdrive-shaft-balancing%2F> shaft balancing </a>