The ITTF did ban all
frictionless long pimpled
rubbers as from 01 July 2008.
This includes all our seven
long pimpled
rubbers as well - as - all frictionless long pimples from other
manufacturers.
The "Minimum Friction Level" of 25 milli Newton established by ITTF is
so high
that only pimpled-out rubbers with total friction have been homologated
after
01 July 2008 (the friction level concerns both the surface and the side
of the
pimples).