Whilst perusing the Exe Regatta website I noticed that Guy Farrant has entered his 'new rig' Comet Trio with a PY of 1065 which led me to check what PY had been applied to the McAuslands for the Squires Cup - it was 1085. Might be an idea to get this sorted out prior to the event.
P.S. It looks as though the Aero 7 and 9 are still sailing under the 2017 PY at the moment.