I've put together a couple of bike with semi-narrow range triples (49-42-32) and Campy NR/SR rear derailleurs (one with each). The chain wrap on a NR rear derailleur being what it is, I had to choose between rather narrow gearing in the rear and having some chain slack with the small-small combination. I went with the latter. The results of accidentally shifting into the big-big combination with a chain that's too short can be catastrophic so I won't do that, but accidentally shifting into the small-small with too much chain slack is usually benign.