My street used Tubular K frame is getting close!

Myself personally I would prefer to have something that is serviceable or I could rebuild. Rod ends are not really intended for some of these uses and are not made to be rebuilt and have no grease fitting. Good Heim Joints are greaseable and rebuildable. This is why I prefer Urethane bushings for the street. Just my 02. BTW they do make adjustable rod ends with urethane bushings. That would be the best setup if you ask me.

Im with you. Some will start complaining about the "movement" poly allows...but I'd still take poly over a heim joint if it is going to be driven on the street.
The like the 4130 vs. mild steel comparison. Most people instantly jump to 4130 being "better". Unfortunately, we have NHRA and other sanctioning body's to thank for that...there making of the rules, is what persuades most people to think 4130 is superior. When in fact, I wouldnt build anything out of 4130 that was put to use on a street car. It simply is not superior to mild steel in this application, as its density and higher carbon content hurts its "flexibility".
Just my .02....