While setting up vln2, vla, and vc, is it right to set up the medium channel vln2 (4,5,6) / vla (7,8,9) / vc (10,11,12)? Also, if you're still loading with one contact, I wonder if you need to increase the quality from 3, and the output setting. I wonder if I can set vln2(vla,vc) to 1,2,3 just like vln1!