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i was going to reply in length, but david did a better job than i could have anyways.
moral of story is, different strokes for different folks, but an unlined grenadine can be just fine. its a finish that i like, others may not.
Cappelli uses different terminology. "unlined" on their website means untipped/rolled edges. By default, he uses an interlining, which he refers to as "padding" (although, you can ask him not to use padding/interlining with a custom order). I had a lengthy/awkward email exchange with Patrizio the one time I placed an order.
interesting, thank you for that clarification.
GO FOR IT!!! regarding lining, talk to david and do whatever he says. guaranteed win.