Mate, I played in the halves, and this was back when we only played on both sides of the field.
What I know about split halves I've learnt fairly recently (past 4-5 years) through observation.
For the record I think it's a great idea and I don't know why nobody thought of it sooner. I always thought one of the biggest issues with setting up a traditional backline (even after splitting the centres, so obviously not that traditional) was that it telegraphed your plans to the opposition.
You see the Tigers constantly dealing with this as they try to keep Benji in a wider position without making him a target.
There are a few teams that still aim to get their five-eighth involved at second receiver (this is why most halfbacks play on the right with the 6 on the left) but it's usually only inside the opposition 20.
However, Bellamy 'won' a premiership with Inglis at 6 but still moved him to centre so they could accomodate Brett Finch (a halfback) in the 6 jersey.
Also the Tigers try to set Benji up wide every time they get possession (they play away from him on early tackles) but he still gets most of his touches at first receiver.
Yeah fancy that.
