Thank you for the kind words AJZepp!

Under the circumstances I would encourage you to try both settings and see which you prefer. By setting your mains to "large", but enabling the sub/LFE output, you'll be relieving your 3.6's of the difficult duty of handling the ".1" track. This, in and of itself, should make a pretty big difference in your system. However, if your current processor provides flexible crossover points for each channel group, I would also consider setting the left and right channels to "small" with a 40-60Hz crossover point. By reducing the 3.6's workload by an octave to an octave and a half you will likely discover that the Maggie's open up even more. In the end it's up to you, your ears and how much you can get by that downstairs neighbor of yours!