Hi lute gang and BrunoBruno and others had problems in getting Aquila loaded nylgut CD and normal NNG strings work well in tune, when used as a pair fundamental-octave. I have had no problem in this.
Here is the proof: https://www.youtube.com/watch?v=ZVmmPulDLVc&feature=youtu.be The strings are 140 CD (2.95 Kg) and 66 NNG (2.62 Kg) All the best, Arto To get on or off this list see list information at http://www.cs.dartmouth.edu/~wbc/lute-admin/index.html