H17 charts vs S17 charts

1) Do Advantage players have charts for both of these?

2) Do AP tend to focus on just one of these games?

3) Is the net impact small enuf to ignore? I know Shackleford shows 3 differences in Basic Strategy when moving from S17 to H17. I can't imagine the differences being big. But of course, in the game of 21, any edge has an impact.