Chantilly Lace does not come out well when mixed in SW product. Well, I don't think it's pretty. YMMV.
Also, High Reflective White is not available in all SW products. Depending on the store, it could actually be very few products.
Determine what product you're using first because that will define your color options.
Honestly, you can not go wrong with SW Extra White. It's their untinted base. It's one of the prettiest whites out there to choose from - and it's simple being it's just the untinted base.
Hide, however, can sometime be an issue with certain painters and/or certain SW product. It never hurts to get an extra shot of white shot into the can because that can help with hide. It doesn't change the color appearance of EW in any significant way - I know because I've measured and compared. It just helps with hide.
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