I am currently using the classsic 18/21 level 30 build with 6PS,7ATH,7WM and 3 Shield. For the next retirement I was thinking to convert those shield points and go for a 21/20 level 30 build with 7PS, 6ATH,6WM. The question is if it's worth getting 1 extra PS at the expense of 1ATH and 1WM. I use light-medium gear and german greatsword.