Yes, all of that. If you have the RAS and the Comp rocker arms in your hands you'll see the difference. The RAS rockers are very stout, they have a bronze bushing, the oiling is well thought out, they use a high quality adjuster, they have very heavy duty shaft hold downs and they include nice spacers and shims in the kit. It is a very high end set of rocker arms.
Or it was. I haven't bought a new set from RAS since they went out of business the first time. I used to buy rockers from them all the time then the business went sideways. I assume that they are still selling the same grade of hardware now that they were then but I don't know that for a fact.