Redline SI-1, FP60, UCL, Techron, Valvoline Synpower CFSC... they're all good even if they are not identical, IMHO.
I'd also try Gumout Regane if I ever see it on the shelf.
I do like the idea of a cleaner with an upper cylinder lubricant... but I wonder whether ash could ever a be a problem on the upper ring.
I also am curious whether an ultra low dose of synthetic 2 stroke oil would also work, as a UCL?
Right now I use either Redline SI-1, FP60,or UCL every few tanks and in small doses. And Techron or Synpower CFSC once a year before an oil change.
I'd like to say that I was more disciplined than that, but I do what I can.