I thought that stun creates more throw, but also that softer shots create more throw. I wonder if a firmer shot with less roll creates more or less throw, or if the two factors are just a wash and there’s no difference.
Good explanation and question. Soft stun definitely creates the most throw. For more info, see maximum throw and throw speed effects.
Concerning the comparison between a firm shot with less roll vs. a soft shot with more roll, it is "a wash" in general, but it depends on the speed and spin differences and cut angle. For more info, see: follow shot throw effects.
Enjoy!