for the most part, spherical anything is much more harsh for street driving. the roads around here are not good for the parts at all. too much shock is transmitted through the car with them, because there is no “give.” that’s why you’ll destroy your shit faster on the roads then on a track. potholes are not your friend.
the lca’s aren’t as important to stray from spherical bearings for street use, since the inside joint doesn’t have a whole lot of shock/ input to the road. they don’t move much really when the car is planted on the road.
the poly/ delrin rtab’s are perfectly fine to run. the only misconception is that they don’t allow for every deflection angle blah blah blah… mine work 100%, with zero issues, so this has yet to be a problem for me.
i’m going to do some work and not waste away on the computer. :banghead