Greg T,
I think you may be referring to Ebonite's recommendations regarding resurfacing of particle balls. I got the following from the marketing insert Ebonite distributed with an issue of BTM a couple of months ago:
"First, you must resurface the ball from 220-
grit or lower to remove the worn track area
and prepare a fresh surface. Then use higher
and higher grits (i.e., 320, 400, 600, etc.) until
you get to 800-grit. Next, the ball must be
polished. Once the ball is polished, the final
sanding grit, such as 800-grit or 1000-grit, can
then be applied.
For balls that are resurfaced and are left in a
polished state, the final polishing step will
remove the buildup of broken particles.
The intermediate polishing step is very
important. It removes the build-up of broken
particles and exposes the reactive material.
When the final sanding grit is applied, there is
not a build-up of broken particles to inhibit
contact with the lane. Therefore, reaction is
restored. The reactive ball death theory may
be the true cause for particle ball death if
proper resurfacing techniques were used and
hook was still not restored."
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Regards,
jensm
