I like to shadow box full speed. When I trained at ATT/Seminole Warriors (about 3 years ago), most everyone did lighter shadow boxing, short movements. I never liked it, I just did my own thing. Shadow boxing fast really helped me with my speed. One thing it also did, was prevent injuries/fatigue in the ring, because missing hard shots can actually fuck you up. I’ve seen a few people throw their shoulder out and a few others hurt their rotators/shoulders. Shadow boxing fast really conditions you to be able to “miss”, which should also make you faster.
I dno, my fists are mostly “somewhat tight”, not completely tight. Sometimes I loosen them up though, but I try not to.
I don’t really pivot much because I’ll lose my shadow, which is funny, but in a gym with mirrors I’d be pivoting alot. I notice most boxer’s love to look at themselves when shadow boxing, even if they are doing very short non-technical punching, it must be the narcissism
On a bag though, I don’t need to see myself at all, the bag keeps my attention. Of course that’s the same in a ring, which i need to get back into.