Hey guys, thanks for giving this one a go.
Yes, I have struggled on this one. This is the best that I've got it so far.
Normally when a string quartet plays live they are positioned from left to right as following; 1st violin, 2nd violin, viola and cello. Now I didn't want the 1st violin to be far left because of the strange panning, so I swapped the 1st and 2nd, then pulled it in to the center a little more, I think its panned about 30 or 40 to the right. I was unsure about panning it central, cuz I was trying to keep the piece balanced, only using 4 instruments means that on the right is the viola and cello, on the left is the 2nd and 1st violin.
Perhaps I should listen to a few recordings of quartets to hear how is should be balanced.