The 75B SA is a pretty neat gun!
I'm not quite sure what your question is, but here are some thoughts...
As far as 'the right load', my experience has been that the .40 SW CZ's are more tolerant of ammo types than other guns (compared with finding the "sweet spots" in Brownings, FNP's, and G22's with different loads). My luck has been that the CZ leaded less than the others and was less susceptible to loss of accuracy over time compared with the other three. Personally, I have been using Oregon Trail's laser cast bullets over a full dose of Blue Dot or Power Pistol, they have a 180gr truncated cone. But there are plenty of others just as good or better.
As far as SA vs standard, the difference is largely in the ergonomics, upswept tang, thumb safety, trigger, and mechanically there is little difference. Both are greatly enhanced by addition of CZC or CGW parts (there is another thread going on now about the 75B SA with some tips on cleaning up the trigger creep and reset).
Both are great guns, and you should feel/shoot them before getting one if you get the chance (if not, hard to go wrong with either). Personally, I was a little frustrated with the one SA 40 I had, out of the box the trigger was heavier and had more hammer camming than any of my other CZ's, but that was just luck of the draw. I did like the frame feel better than the standard model, but like the 40B frame even more, so the SA just doesn't really fit in my collection.
Anyway, hope this helps, or at least keeps the conversation going!
Enjoy!