A single shaft would be simple but here at Crower we like things that last and putting needle bearings on the rockers makes for just a better piece. Plus it make adjustment WAY easier. Going to look something like this. I know its chevy but think mopar. Plus since Crower is almost a racing only shop mostly everything we make is made for tuneablity so changing rocker ratios while at the track is super easy. This is not that important for a drag racer but guys who go straight then turn left only to repeat again, this is important.