George "barker " Bellfield used to write quite a few articles on Greyhound betting in PPM some years back.
He had some great ideas .
Not sure if he writes for them now but Back copies of his articles would surely be available.
I would start at the old PPM ANNUALS as they had the BEST of the lot in them.

As an aside. Has anyone heard if the proffessional greyhound punter "Joe of Ararat"is still around.

Cheers.
darky.