Barbell rows vs 1 arm DB rows

[Tweakle]

it's the torso twist that does it, I've never seen anyone using decent weight on the DB row that uses textbook form

I've found the t-bar (oly bar wedged in the corner) lets you use the most weight of any rowing exercise but the ROM is a little short

 

[Little Boy]

I only do DB rows....

I've tried barbell rows and they are tough, can't use much weight.

I think I'll start alternating each week, because I already alternate BB and DB bench each week, so why not do the same on the opposite movement?