To me, it's like a bath vs a shower. If it produces the same result, I really don't care. Pressurized oil is always a good thing to have at areas that are under a lot of load, but depending on design, that isn't going to happen consistently. The factory shaft oiling only oils once every two crank revolutions, so it isn't maintaining pressurized oil to the rocker shafts without modifications. Even with a constant flow, there is a lot of oil that bleeds out every open orifice around the rocker arm that allowsetal to metal contact. Despite what you may have heard, it's not just like the bearings on the crankshaft, and can't be treated as such. When I am doing a build, it depends on what works best for the combination.
