EDIT: Which is why a lot of the systems posted on here aren't really worth 2 pinches of salt to be bluntly honest. A lot of them have been clearly backfitted when you have 10 filters that produce 70 selections since 2009 with a POT of 50%, blatant backfitting if you ask me.

Would much prefer something that has 5 filters with 1000 selections since 2009 and a POT of 30%. Obviously there are other things at play like strike rate that may adjust whether your comfortable with a system or not, but you get the drift.

Note: Not having a dig at Barny's system in this thread though, I think it has real merit, i'm just talking in general.