are there any reasons i wouldn't want to mix the same brand of bass string? what i have in mind-- dr strings--peacock blue and black beauty (both medium sets 45-105). i want to alternate the colors. the only info i get on these 2 sets are that the only difference is the colored coating. both sets are the same guage and roundwound. an issue with doing this? i'd think it would look kind of neat, but i don't want to effect the sound.