100 lbs that does sound like fun times

you don't seem to do that much shoulders?
dumbell raises
shoulder press
shrugs

Is that cause you find boxing keeps them pretty strong I don't do any weights on my shoulders but I find its my strongest feature

i'm not comfortable bringing my arms up straight above my head with weights as i feel my shoulder is becoming disjointed particularly lifting up with cables
when doing dumbel raises do you bring the weight higher than your shoulders with a straight arm?