Dual-point vs. Single-point distributors - pros and cons?

K.i.s.s. stop thinking of ways to make things more complicated!... With multiple cars and a truck in mid restoration there's way too many things to do to start making each individual thing more complicated... For instance on my last restoration there was many many more things I wanted to do but at some point with that vast amount of work to do I had to just keep things simple. Now once it's running and operating it's already given me more to do. And then when those things are ironed out then I can start getting complicated... My-2....