1. I don't agree. A double vent is one thing I think you should "break the rules" on. I think it sits better and is more comfortable. Also, you can always sew them shut, but you can't go the other way (from ventless to vented).2. I don't think Grosgrain is that common and might be hard to find.3. I personally find patent shoes to look cheesy. Highly polished plain toe calf may be a better alternative if you don't like patent.