WG17 is now working on a technical report on DCGs.
An update to this document will be posted shortly. In the mean time interested persons are asked to run the grind porgram and report results to either Jonathan Hodgson (jhodgson at sju dot edu) or Roger Scowen (roger dot scowen at npl dot co dot uk).
If you want further information, or want to participate, please contact your national member body or one of the contact addresses of the WG.