I can't believe I made this mistake, but when I went to buy my first mandolin, I did not bring a mandolinist with me. Now I have a mandolin that I feel is not a very good one...so I need to know from mandolinists, how much space is there supposed to be between a pair of strings (that is, between the two G strings)? I think there is too much space on mine, and when I play a four-fingered chord, my pinky splits the two strings instead of depressing them. And if indeed the distance is too large, can the problem be fixed?