Mystery solved. Static weight is on spec. But balance off. As a result i have a very very low SW. So here are my specs:
Unstrung:313,5gr/ 284,5SW /30,8BL
TBS 1.20:330gr / 312SW / 31,8BL
I ditched 1.20 tour byte soft and string it with HyperG soft 1.25:
331,6 / 317,5SW / 31,9
I added the missing 1,5gr on 12:
333,1gr / 324SW / 32,1BL
So in conclusion:
1)1.20mm string adds to shift around 27points.
2)1.25mm string adds around 33 points.
3)In stock form with 1.20 TBS I had very fast reactions with the low 312SW but I noticed a minor instability at 3/9 on volleys which were out of the sweet spot. In general i did not have stability issues even against big hitters….. also i am amazed how much of a heavy ball i was producing with such low SW….maybe because the static weight is spot on ??
So for my playstyle i am looking for a shift with an unstrung SW in the range of 285-292!
My next phase of testing is to evaluate if my launch angle is shorter with 1.25 cause with 1.20 was just perfect. Also to evaluate if the increased SW affects my performance.
My stringer also told my that he hasn’t seen so many holes on the down side of the head (crosses) on a 18x20 pattern. I didn’t understand what he was telling me and didn’t bother to ask him to explain it to me ?