Agree with Dom's list.
Concerning AK and CKs comments:
"Rules for riders: take a look at the rider eligability please & the need to MAKE the top 3 in the 583 'move up' as at present - not good for encouraging some to try for top 3 in their 1st year on limited funds!"
Solution for first place anyway could be.............drum roll.........a 620 race bike ready to race next year. But they have to donate their 583 as a spares bike to the rest of the 583 grid ;-)
Any other (sensible) suggestions?