Thanks for the input so far everyone. I'll keep the SA comp running for this year then. @GCR, thanks for the input, I've already covered point 4, unless I've made a mistake somewhere it is holdings + cash - tax to get the leaderboard. I'd be happy to try the rest but maybe I should put it them to a vote in a blog post about the comp soon.
@Mr Div, 2018 ink should be fixed now.