David’s Back Weighting Formula

Driver = 7 1/2 in.
3wd = 7 in.
5wd = 6 1/2 in.

3 iron = 3 1/2 in.
4 iron = 4 in.
5 iron = 4 1/2 in.
6 iron = 5 in.
7 = 5 1/2 in
8 = 6 in.
9 = 6 1/2 in.
PW = 7 in.
SW = 7 1/2 in.