There are four pools of voters:
- 133,000 existing members (with past loyalty to Brown or Elliott)
- Ford sign-ups
- Elliott sign-ups
- Mulroney sign-ups
And don't forget they are capped at 100 votes per riding. So if Doug was already going to get 80 votes in E-N, adding 1,000 members might only give him 10 incremental votes.
Each will get the support of their sign-ups. Here Doug ('ford nation') and Mulroney (federal machine) have the advantage. Also, both have active campaign teams in place. Elliott is much further behind, though she seems to be inheriting the Brown machinery.
For existing members, how many Brown supporters will Elliott and Ford capture? While FN has its charms, I don't see him getting 5,000 members/day to balance out the existing population.
So let's generously assume Ford's signups beat the Elliott/Mulroney combined total by 30,000 new members (that requires 3,000-4,000 new members per day). Of the 133,000 current members lets say 80,000 show up to vote. For Ford to win he needs capture 25,001 of the 80,000 exiting voting members by the final ballot, or about 1/3. And if Ford's support is concentrated in a few 416/905 ridings he'll need even more to beat the electoral college effect.
The short race puts conventional wisdom in reverse. New sign ups are the first battle ground - the existing membership is where the winner is decided.