I like the sound of a 'primary' travellers series. Suggest not too many events, 4-5?, so that people can prioritise & therefore better turnout at each event. Other events can be 'secondary' - ie. recommended for a gathering of Cherubers.
One thought I had this year was that many of the venues were on the outer perifiterole reaches of the Cherub population, easy for some but not most. A few more central locations would make it a more maneageable drive for everybody. Eg; Draycote, Farmoor, Datchet, Queen Mary, Chew, Grafham. Event sharing is the way in - and fun for meeting the other classes too.
I agree one series event at Weston and the EasterGS & Skiff open can be Cherub 'secondary' extras. On the secondary list I would recommend Bloody Mary QM Jan, Tiger Trophy Rutland Feb, Glyn Charles Pursuit Hayling May, Lord Birkett Ullswater July. They are all good big events to show our classs off at and the handicap events (as opposed to pursuit) will help us produce an official class PY.