Mr Steward,
Please don't fire in any protest on my behalf. A system which picks just one winner for the year, even if (or especially if) it's from just eleven bets is no system. The reason I mentioned that subsystem was to illustrate that POT, albeit the point of this thread, is probably not the best way to judge a system.
In my humble opinion Bhagwan's looks far the most promising and the POT if that is what you're after can be raised to 94.96% by simply raising the Unitab price threshold to $5.00. One interesting fact though about his system (as with some of mine I hasten to add) is the long strings of losers followed by winners coming in bunches. It obviously warrants further investigation as to why? Maybe track conditions, class of races who knows? But I will try to find out and let you know.
Cheers
Ron