Every set I have seen were baffled, and looked like stock baffles more or less.
I have not seen any insurmountable interference, even with .630 lift cams and rollers, however, the tight spot is at outer steps of the baffles and the side of the rocker body. I generally start by squeezing them with a big set of Channel-loc pliers, then shape them on a leather bag so I don't mess up the chrome. That being said I did it with HS adjustables and Brent's non-adjustables with POP end stands, I haven't tried a set of Ersons. The Ersons seem more narrow though, so might work
I would recommend mocking up a set of blue PBF, they should be almost identical, and then see how close you are.