I was wondering If when you are using Drop D tuning or some variation (like C G C F or Db Ab Db Gb) you need to have a thicker gauge string than normal for the low note? Usually, the strings are .20 gauge different from one another, but would you need an extra .10 for the low D? (or C?) For example, if you were using strings gauges .045 .065 .085 .105 for standard tuning, would you use the same gauges, or would you use a .115 for the low D? I also heard of people using .055 .075 .095 .115 for Drop D tuning. So what do you guys think? For starters, I happen to know that Chi Cheng of the Deftones uses .065-.120 strings and tunes C G C F.