Steve Sayers,
I think NGLA could fit into the quirky category without diluting its stature.
If holes # 1,2,3,4, aren't quirky, I don't know what is.
# 6, 8, 11, 12, 14, 15, 16, 17, and # 18 could have quirky used to partially describe them.
Perhaps there are degrees of quirky, and categories of quirky, some within a tolerable range, some on the border, and some beyond tolerable.