Originally Posted by mikeler
...Thinking out loud, if the last cross goes under the main, you should have a little bit longer string length (the distance between the end main and the next one) to pull since the tensioner is below the racket...
I can't see that either. The string goes through a grommet over and under x strings or under and over the same number and out the grommet on the other side. Same distance no matter where the tensioner is. The only change I can see is if the number of mains strings changes. If say you were doing an ATW and coming back to weave in the outside mains and the cross string get deflected after you have already tensioned them the tension could go up.
This one has me scratching my head and wondering how it happens.