About the airframe--do a search there are extensive threads on it.

S100 should pull about 12.5 pounds with a 16 x4 on 30% I think around 9600--I have heard but not seen.

You will have to increase the sim speed of AFP from 100 to 200% in order to get your 50% to fly more like a 22.5%er.
I like the black extra modified with increased throws with sim speed turned up better for practice on AFP because it is a handful & will show some bad habits.