Why are you using the Mackie??
There's no advantage to using the insert jacks on the main outs as direct outs vs using the unbalanced output jacks...they are essentially the same thing.
Unless I just don't get your setup which is highly possible...how many sources do you have? IOW how many channels do you need?
Is that...is that a MiniMoog on the top there?
Where did you get the stand that allows the M308 to be tilted? Its looks good. I imagine it makes it quite a bit easier to see the controls on the board when its tilted, as opposed to lying flat. I'm wondering if I should tilt my M-512, or if its too big to be tilted.