Some of my observations.

It is a waste of effort worrying about first up and second up. I recently spoke to a trainer who pointed out that these days most horses have a couple of barrier trials prior to racing and are generally quite fit when fresh. These horses give better odds because of the old beliefs about first starters.

It is really difficult to assess a field accurately and come up with meaningful overs on a regular basis. The only punters who achieve a good return this way appear to have a large staff to help and rely on relatively small returns with massive outlays. I think setting a minimum price is just as good like nothing under average odds which is about $7.

I believe punters have to think outside the square and develop an individual strategy forgetting about trying to refine the well tried factors which just lead to bankruptcy by a thousand cuts.

It is extremely difficult to achieve a profitable one bet strike rate better than 10%. When UB had his site up I tested lots of combinations of factors and generally only got a +POT only with 10% methods.

My contribution to elimination ideas is to subtract api rank from actual weight rank and eliminate horses if the answer is minus 3 or worse.