Dear Arcsaber Z-Slash fans...

I need some advices on the string tension that this racket can comfortably hold. I have one Arc Z-Slash TH and I used to put BG66 or BG66UM @24x26lbs on it but now I am trying to switch to BG80 with higher tension, probably around 27x29lbs.
I've read some bad stories of how fragile is the frame of this racket under higher string tension where the frame/string holes are sinking.
I am thinking to change the grommets with AC416W-2, the U-type one to support the frame holes better. Does anyone know if it really helps to support the frame stronger against higher string tension ?

Thanks in advance