[scottfab]

The last time I saw a thread on injectors it seems to me the RC design won out based on them being less prone to fouling (rotory design not pental) and that they were stainless steal (corrosion resistant).
I converted to RCs back in the 90s. (I think).
No problems since.
Things to note. The early Zs had a different diameter injector for primary and secondary.
Secondary injectors tend to leave the O-ring behind when you pull them out. The primaries don't. Be careful to note where the orange rubber seal goes when you pull the injector electrical connector off. It's tinny and rectangular.
They can dangle and fall off.
Good luck