Digital BW, The Print

Roark Fade Tests

PiezoToneWN 50%     MIS-FS 50%    
1.56% fade          18.18% fade 

The above data is from Mr. Roark's test in the files section. I want the most fade resistant warm neutral ink to use with Piezography software. I have already decided to use the Museum Black with one or the other. Do I get better fade resistance for my money with the Cone ink which fades 1.56% or the MIS ink which fades 18.18%? Isn't the lower number better in fade? I just want to know which ink will fade less.


Mike