Originally Posted by Bogotazo
If you haven't boxed then don't start advising people on how hard to throw. He's in a gym under supervision and has competed before, he and his coach know when it benefits him to go easy and work on things, and when to simulate a fight. If you go all out every time, you'll learn nothing and get hurt.
Thread starter looks sharp and solid.
There are numerous boxing coaches with little to know actual experience in the ring, yet they still coached champions. Eddie Futch and Cus D'Amato to name a few.
I didn't tell him "to go all out", I advised him to go hard. Going hard means like 80%. Are you complaining about getting hurt? This is boxing, he is bound to get hurt. It should be common to have bruises after a good sparring session.