I've always favoured a nine-centimetre tie - I find it is the best balance between tradition and modernity. I like a hand-rolled finish, rather than tipping - it feels more like you are wearing just the silk itself. And I prefer a light interlining for the same reason - this is a silk accessory after all, not a wool/cotton one.
You can find examples in the market of all three things: of 9cm, of hand rolling, of light linings. But getting all three together is impossible. Add in the fact that I don't want a keeper on the back (because I just don't use it, and form should follow function) and you're left with a highly specific spec that can only be fulfilled with a personal order.