That's it--knew 35 didn't look right. Before my time, and there's not much information floating around on the www about it.
I know ever since I've been making strings (little over 20 years), the "economy" strings have always been endless, even after a machine was designed to make a passable "Flemish" string.
Like I said earlier though...how the string is built makes a big difference, regardless if it's endless or Flemish. I make both and shoot both. Equally well made, either one works fine. Kind of like arrows...the best bow in the world won't shoot a junk arrow well.