Hi Napalm,
With GR some of the stuff can be good , but as far as selecting winners , he is no better than others a number of the products are on the pricey side, especially some of the staking plans that use a form of progression & one does not need to spend $900 to do that.
I bought the first software edition of his Power of Ten , was not worth it.
I wish it was was, it well laid out & presented but struggled to break even on a set of figures which break even at level stakes.
The manual version was good thats why I ran with computerised version.

Some of the tools that reframe the market could be good & some tools for Dutch betting could be of interest or useing ratings but one can get these things online at no cost at all e.g.Ozrace tools have a good selectionat no cost at all.

There selection service without fail 7 days a week give out horsesthat were cosistantly veru short , at the time over 3mnths it rarely selected winners paying $3.00+
The results of profit are usually based on best price available for each selection
If selecctons were bet on the TAB , they made a slight loss ar level stakes.

I feel it would be best to do your own thing targetting races with exactly 9 runners only .
Target the top 2 selections of amy tipster e.g. Radio TAB selections from UniTAB are good. & break it down from there mmaybe using the Neurals.

Cheers,
Brian.

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Cheers.