I have always used the Ernie Ball slinkys for as long as I can remember. I sometimes get the heavy gauge 105s, or the meduim gauge, which are the 100s. However, I got a pack of each on a discount, and decided to experiment. I put the E and A from the meduim gauge on and the D and G from the heavy gauge on. Works absolutely fantastic for me. But, how can I go about buying ONE set of strings that will match up to my new "custom" set? I would even change over strings, as I grow weary of EBs anyhow.