I do leaded lights similar to Mogs
I don't use a spray bottle
I wet a piece of scrim in a bucket of my cleaning solution, I use gg4 but used to do it the same with fairy and wring it out so that it's damp.
go over the window with the damp cloth, Then with a dry pice of scrim buff the window quickly.
It works for me and they end up perfect.
Ps. just watch out for the artificial lead as once i caught my scrim on it when buffing the window and pulled about 2 inchs of it away from the window.
Luckily it didn't break and was able to stick it back down.
Paul