Rooster or monkeys tails happens to all of us.
In damp weather it can be a particular problem.
All you can do is perservere and practice and make sure the end of your rubber is in good condition
another tip is to wipe your squeegie before using and make sure you dont have to many suds, also a BOAB is not very good for Monkeys tails due to the end of your squeegie being sat in bubbles and water
Also practice going a bit higher into the dry part of the window between strokes especially in damp weather.
Atmospheric conditions can have a marked effect on water,
and the nearer to 5 degrees you get , the more dense water becomes, which equals heavy water
One day you can be perfect and the next day you cant do it to save your life or so it seems sometimes
My personal opinion Squeegieng is a skill that cant be taught .
Hope this post mekes sense as i am trying to watch the footie as i type
dave