Just some feedback, I tried both the drag curl and the perfect curl from the Violent Variations article in this week’s T-mag update. Great exercises! I’d done drag curls before but not the others.
The Gironda curl is much tougher than you’d think, huge amount of constant tension on the bi’s. I experienced a little back pain with it, but it wasn’t “bad” pain, just low back activation/stabilization.
Anyway, cool exercises! Try them!