[OrrieG]

I used the template for my modifications, but left the front track loose so I could adjust if the windows were off a little. Then I bought a set of Brothers windows from a member. I compared the Brothers to the template and the only difference is minor at the back bottom corner (lower right in Denees photo), the angle of the short section is slightly different, like an 1/8" or so. That section is below the sill so sealing in the channel will not be an issue.