Actually, now I think about this, and my recent experiences with my database, the more it makes sense. I've no doubt, as I've said before, there's a fine line, but there's certainly situations that pop up regularly time after time.

Until I got my database I was wary of class related filters, but I'm a convert now, as they do group horses that have a good Win S/R, probably the best filters I've got are class related filters. The "Pareto" thread is very strong on a class filter. I summarised the "Pareto" thread into a system, I might have to revisit it.

I recall his POT was around 25%, so nothing outrageous, and plenty of back up logic to support his findings.