Hadn't really considered this a play until I looked at Dodig's results on hard-courts this year and last, which seem woefully unimpressive. I'll be the first to say I don't know much about him, however.
I saw Johnson play live last week, and he seemed to have an impressive range of shots and styles, but he had a tendency to over-use the slice, in my opinion. Don't see much discussion on this one so just thought I would raise some.