Aw Tracy ole buddy, you are so complimentary and masterful in your responses.The rocker arm cannot fling oil into it...take the valve cover off and look, the baffel system is GM's best to date and it would be impossible as there is no direct line to the cleanside...all goes through GM's underside baffle first.
Take a look at the following picture through the oil fill opening on my non-Z51. You will readily recognize that as a rocker arm directly below the opening. Also, note the pool of oil inside the oil cap opening which puddles there whenever the engine is run because it is slung off that rocker arm. Any baffles inside the rocker cover are obviously not directly below the oil fill cap.
I must assume you cannot refute the other observations because that is the only one you responded to with a form of rebuttal.
And no, there is no one feeding me information to challenge you with...I came up with all of these thoughts by simply looking under the hood of my Stingray.