Maybe you could just have entries on the day but.
1. You couldn't have a printed program
2. Sorting out race order would be very difficult, (we will try to not have riders racing back to back)
3. Using transponders would be a lot harder, you need the info to set things up etc.
4. Planning everything is a lot harder if you don't know how many riders you will have.
5. How can you give sponsors full value unless all of the above are done.
Also please the meeting starts on the Friday 25 April (Anzac Day). In the fortnight before that Friday you also have Easter so that is extra working days lost.
If there is someone who can run the meeting better (next year), please apply to MA now. I am more than willing to sit back and see someone do things better.
The view expressed above is my personnel view.
Kevin