Purranha, the 3 screamer strands don't nest. The double of course does but the single strand is about the same length as the longer strand in the double. I bought it that way thinking I'd wear it on it's own for awhile and then when I learn to string, I'll probably shorten it to nest inside the double. Or I'll leave the single as is and shorten the double. It's currently about 17 and 18" and I wouldn't mind it a little closer to the neck.
Yep, my triple and BAS's would be similar. The differences are (correct me if I'm wrong BAS), the two outer strands of hers have pearls that are the same size and the inner strand has smaller pearls. And the pearls are not graduated. Also the overall length of her triple is shorter.
So our pieces would be similar but also unique