Hard Chrome Rocker Shaft ?

OK on these new style hard chrome rocker shafts, non-bannana grove style on mounting them.

I'm using the iron adjustable 273 style rockers and a solid cam.

Which way do the tiny oiling holes face?

On the origional shafts the bolt holes are larger on the bottom, but these new ones have larger holes on the top and bottom side for mounting.

And the shafts have a notch in each end, they still go in this order correct?

Shafts have a notch on one end. This notch should always be down & towards the rear on the drivers side head, towards the front & down on the passenger side head. So if the notch faces down then the oil holes are down too, and since they are offset they point out toward the exhaust. Seems like maybe this is the way I recall it is suppose to be?

I have read the exact opposite mounting many times. I think it depends on the shafts and oiling holes? But need some expert help here..

Thanks!