frequency of g and w

The frequency at which G and W are used in the English language are very similar around 2%. In WYPS though we are given three G's but only one W. I suggest swapping one G for a W making two of each.

Source

http://www.math.cornell.edu/~mec/2003-2004/cryptography/subs/frequencies.html

http://en.wikipedia.org/wiki/Letter_frequency