I agree about having a free finger when playing these basic chords. With the G, although it has been a lifelong habit playing with the first three fingers, I like to sometimes leave the index free and use the last three fingers to form the chord. Sure makes the G7 easier, and you can also pick out "Southbound" by hitting the C note on the B string.

But most of the time I play the aforementioned "drone" G chord and also leave those last two on to make the C. Sounds sweeter somehow.

And Spaw, I've been to East Overshoe, N.J. and nobody lives there. I'm sure you've mistaken it for my hometown, Perth Abomination, N.J., just over the Pristeen River.

Clifton53