the problem it was that i used 17.5 kg dumbells with palm face its other with 2 hands at the same time on my assistance work
my right side it was ok but with my left it was harder to finished it
on the last set i choose to go with 1-1 hand
on the right side 7 reps complete with neutral grip
on the left side 5 reps complete
the problem its on the teres major minor , somewhere there