I just tried to play a game with my SP and the first 5 batters were a Boss Challenge. After I completed the first 4 I said enough of this nonsense and restarted the game. When I started up again the first batter was a Boss Challenge and the first batter in the 2nd inning was also so when the very next batter was one again I restarted the game again. The third time the first batter was a Boss Challenge again so I ended up just tuning off the game. I have every silver level equipment there is and don't need anymore and I find these challenges annoying as hell. So I say to SDS, PLEASE STOP WITH THE BOSS CHALLENGES!!!!! It is getting totally ridiculous.
you get bigger boosts for pitching to them, why wouldn't you want to get bigger boosts
they are annoying and no you don't get bigger boosts