What is it about the positioning of the body that you don't like when you are sitting...is it the neck placement or the body itself?

Depending on the model you got, the guitar may have 24 frets. This changes the neck positioning enough that it threw me off. I had to lower the guitar and hold the neck on more of an angle. Sitting down, I wasn't able to really do this.

So, if it is a 24 fret model, you might try a 22 fret model which has a more traditional geometry.