Regarding the wood feet on a Sundance sectional or sofa, Duane told me it really is just a preference on your part and not significant as the wood is "down in the shadows" anyway. This is true - you never notice the feet as they are down in the shadows! I'd have to look at my order to see which wood I selected, but as long as you go with something dark and not off the wall, it should look just fine. I used the standard A nail, no special requests on spacing, and it looks very good.
Update - I placed my order with Duane for both Sundance sectional and Robinson tufted ottoman in Kipling Whiskey, Belgian Chocolate. I stayed with Standard Nails A/AA and Cushions. Moving on to my other rooms! Thank you everyone for you help, again!