Well, F is the first chord I have tried in which I need to hold 2 strings with one finger. I haven't gotten far enough along to know barre chords. My index finger is too small to use the tip and cover both strings but when I use the pad I have trouble curling the other two finger high enough. When I curl the other fingers the index pressure comes off the first two strings. But speaking of the G Major, I also would have less trouble using the ring finger rather than the pinky on the high E. Or if I use the pinky on high E I want to use the Ring finger instead of the Middle on the low E. Is there a reason I should not do that.