Thinking about it I probably think they've pretty much got it...

Thinking about it I probably think they've pretty much got it right about averaging your PP over all SPP to produce a smoothed out result rather than trying to pick & choose 'favourites'.
Anything can happen in a week in the markets especially to individual shares.
You only have to look at Z1P to see how big swings can be.

I just think they need to tweek the SPP selection criteria a bit re liquidity & being a bit more in the money, especially with the level of broker fees.
We're going to lose money on AQR & ADI will likely be a pretty small % profit.