Rockers For 318..Which setup to Use?

I just got the MP rocker kit that included the chrome rocker shafts from Mancini. The rockers were nice, thicker than the stockers. I did notice that the rocker shafts were different in the fact that the notch was on the top and not the bottom. Not sure if anyone else has had this same experience. Otherwise not bad for $137.

I went with the stock setup to avoid the hassle and expense of finding the correct pushrods. But, if I had the time and money I would have probably gone with the rollers.