https://lh3.googleusercontent.com/9T...=w1080-h608-no
https://lh3.googleusercontent.com/oF...=w1080-h608-no
https://lh3.googleusercontent.com/0l...=w1080-h608-no
https://lh3.googleusercontent.com/7_...=w1080-h608-no
https://lh3.googleusercontent.com/WB...=w1080-h608-no
https://lh3.googleusercontent.com/ed...=w1080-h608-no
https://lh3.googleusercontent.com/H8...=w1080-h608-no
https://lh3.googleusercontent.com/97...=w1080-h608-no
https://lh3.googleusercontent.com/Lc...=w1080-h608-no
Not sure you have seen these photos so I'm going to post them in a hope to assist you.
I can't provide exact weight force data against the TB but when the TB tension is properly adjusted and if applied very gentle pressure with just one finger while at #1 TDC, you will see 10mm movement from rest point in both ways like these photos.
Good luck.
Kaz