So the one saving grace of Berroco Ultra Alpaca (and by "saving grace" I mean "the thing that keeps me from buying piles of it in every colorway") is that it's heavy, overly warm stuff. A sweater in this yarn would be reserved for the most brutally cold of Boston winter days. And this is good. Because otherwise, we would have a problem.
Oh, what's that you say? Berroco is making an Ultra Alpaca Light? A yarn that knits up to a perfectly light and lovely 5.75 stitches per inch? A gauge that could conceivably be used to knit the snuggliest and most wonderful, but not suffocatingly warm, socks and sweaters and scarves? And you say that the colors are still as gorgeous and rich and subtle as in the original Ultra Alpaca?