My left arm always fails first

[Snatch518]

When I am working bi's, tri's, and shoulders my left arm is always failing on me before my right arm. If i'm doing curls, tricep kickbacks, arnold presses or whatever. my left arms wants to give up on me while my right arm is having no problem. What can I do to get my left arm strength to level out with my right arm. Should I be doing extra sets with just my left arm?

 

[rockett]

I had the same prob to start. I just used DB for most everything for about 6 months. Stick with it and it gets better. Rockett