I have a couple
I have a couple of half steps on double cranks and like them. I think they make more sense on triples though. I wasn’t going to change cranks on my 47-50 Frejus or get rid of my 144bcd Superbe crank on a Trek so they are my half steps and are pleasant to use here in the flatlands. I think however I like the one and a half steps best with a 6 speed in back.