I have a few OTs that multiply here readily, one of them is 'Robert Griesbach' the other that comes to mind is 'Visaversa'. As a rule from my experience, they don't multiply too fast. But is a great gift when they do.
Polly, you have it right on the OT. They don't have as strong of fragrance as an oriental or a trumpet, I'd say that their fragrance is nice, but not at all overpowering. And when it comes to lilies, overpowering is what I like. I love smelling them at night as the day cools down, and in the morning as the sun comes up. There's nothing like a stroll in the garden with that fragrance. I know some people find it not pleasing, but I really love it.