1. I feel them only affecting my posterior delts
2. I think it's due to the flaring of my elbow, which I'm having problems tucking in.
3. Is it better to perform, singles or both at the same time(which one has less room to cheat?)
4. will these improve my bent barbell row is there another exercise, i'm trying to cycle between barbell and dumbbell every month, to prevent muscle imbalances.