the test table is a very useful tool for checking set grouping and we
still perform all aspects of re-bias , re-polish etc of sets used on
sand filled synthetics etc even though our test table is currently unregistered.
We cannot do the final part of engraving the new date stamp and issuing
a certificate. So few players want to have their set officially
tested it has become un-economic to keep the table registered yearly
with World Bowls.
Testing over past 8 years shows approx 60% not legal for play under
the Rules mainly due to playing on sand topped synthetic
grass first introduced in the early 80's and although administrators
knew of the significant wear factors, testing was stopped at
this time. [ Bowls are to have a bias not less than the Working
Bowl and group on a table within 100mm/4" circle see other details below.]
Many of the sets we see have quite noticeable bias changes, many going
wider than when new and some with huge variation within the 4 bowls.
We remain certificated bowls testers but sets requiring an official WB
stamp will have to be sent to Australia as our table is un-registered, we regret any inconvenience
Below is a WB Test certificate indicating the criteria checked. In
addition a set of bowls must be "a set of 4 bowls" of the same make,
model, serial number, colour and emblem marking & painted
Typical sand damaged set