lat problem

[egodog48]

Okay, here's the deal. as you can see in my avatar, my right lat is bigger. at first i thoght it was the angling of the picture, but i have come to realize, outside of this picture, that my right lat is noticeably bigger.

Now, before i ask what i can do to remedy the probelm I must say that my left shoulder is the one that I sometimes feel an impingement in while doing heavy heavy bench.

SO, what should I do. Is this a circulatory issue, or nerve problem, or its just because Im right handed and when I do ISO exercises form is always much better on my right side. Basically the left side of my body doesnt do what i want. Should I forget the iso's and work purely and t rows and such or should i iso it and go heavier or more reps on the left side. it sucks because it has been bugging the hell out of me, ive just been curious how long its actually been like this.

[MUbodbuilder]

everyone favors one side of a body part to the other. my right leg is different than my left. first off i dont iso any large muscle group like lats. i fix my leg problem by doing the compound movements then at the end do an extra iso movement for the left side. or add an extra iso movement in on another day just for the left side.

id just cut out the iso for muscle groups like that IMO. or take real care in counting reps and strickt form.