It just makes lower tuned guitars a lot easier to play. When you move around the guitar, the strings like to move left to right like you're doing a pitch bend. It just feels really weird to play at times. Regular gauge strings resonate at a high frequency, so you have to greatly reduce the tension on the strings if you want to play something like C Standard or Drop B, which I mess around with at times. Putting heavier gauge strings on a guitar allow you to keep more tension on the strings, which keeps everything feeling "tight" like a normal guitar with the standard E tuning, which is what I'm used to. It's possible to play low tuning on regular strings, but lower gauges feel better.What kind of techniques do you use, and how would heavy gauge strings affect that?