How much booster do the pro CNT members use?

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Even after 3 layers of Haifu Seamoon National my H3s don’t look this noticeable and those are national as well.
this is Liang Jingkun’s bat back from Frankfurt 2023
How many layers do the pros use?
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Can someone explain how booster affect topsheet?
I don't really understand what should I see here.

Booster expands the pores in the sponge ==> sponge expands ==> topsheet stretched ==> increased surface tension.

That's why you see the pips.
 
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Even after 3 layers of Haifu Seamoon National my H3s don’t look this noticeable and those are national as well.
this is Liang Jingkun’s bat back from Frankfurt 2023
How many layers do the pros use?
its not only about the layers, its amount of oil put done and the resting time in between
and the time to glue on.
by the the time it has uncurl, the stretch is also less for example.
3 layers is about right
 
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its not only about the layers, its amount of oil put done and the resting time in between
and the time to glue on.
by the the time it has uncurl, the stretch is also less for example.
3 layers is about right

As of late im boosting with haifu and even with that it is almost impossible for me to boost more than 2 layers. The last rubber domed to a full U and any more booster would have made it into an O.

So i would say it all depends on how the reaction of the rubber unfolds, too.
 
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How you make it stay on blade?
Power of knowledge, lol. Basically after gluing and cutting, I clamped down the bat after gluing with a stack of books for like 2 hours. You have to press the rubber hard before and during cutting as well.
 
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That makes sense, I always wait for the rubbers to uncurl but I suppose pros don’t
Yeah don't do that, you should glue them within ~24 hrs of the last layer of application, and you can apply each subsequent layer as soon as the previous layer is absorbed.
 
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Yeah don't do that, you should glue them within ~24 hrs of the last layer of application, and you can apply each subsequent layer as soon as the previous layer is absorbed.

+1,
I’m trying to measure hardness of rubbers by a (cheap) durometer.
Between As soon as booster dries and 1 day later (waiting), there is a significant difference.
It almost loses all softening effect in 1-2 day.
 
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