I recently bought an NS Design 4. I like the sound of the E and A strings but the D and G are somewhat thin, at least to my taste. Sounds better out of my 1-15 cab but I can't always cart that around. It has the Contemporary strings on it (with the hole in the ball end). I like a fuller, deeper, vintage sound (both on my Fender P, Ibanez Acoustic and this NS). Would I be better off going to the NS Traditional strings, the new GHS Crossovers or something else, maybe the LaBella Tapewounds or the Piastra Obligatos? (It seems that putting full sized DB strings on the NS can be a challenge.) I play mostly bluegrass and the open G and D's are kinda important but these Contemporaries don't sound good to my ears.