Rob, the gee gees aren't really my thing, but I think you've already got a slant from others on whether to spend any dough on this (or any other) system.

My dad used to say backing the 2nd favourite E/W was a good punt.

My mum used to do only handicaps, take the average (mean) weight and age and back that.

Neither of them are millionaires - yet. (But they're only in the mid-80s - give them time).