Yep, there are 2 "systems" I use to this day that require very little IT and PC resources, Kenchar's place selection and betting method as he explained them in such a way, one would have to look beyond the square and persist, is one of those "systems".
Takes a while to "get it" starting at 2 unit place bets,
but looking at my TAB balance, I'm not complaining.

In a email he told me he was not well a few years back, probably around 2004 give or take.

I don't know if the interpretation of "system" is suitable, my perception is a "exploitation" method. There are certain stuff ups on certain races/venues and I don't think a bot or a program can "bend" number type rules enough to find a suitable selection/s.
That's what Kenchar appeared to do;
Get On, Get a Profit and Get Out.