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Be warned that LARC seems to change at will
It does not seem to be every 3 months as before
So it is like buyer beware.
If you want to play in the ITTF's top spin only Olympic table tennis domain , check the LARC before you order a rubber.
Then again, that rubber could get de-approved any time LOL
So check the LARC before you drive to a tournament 100s of miles or fly to a tournament 1000s of miles.
There is no clear official statement from ITTF on this