I don't know the ans to your specific Q, but have to disagree that the 130 factors are being used arbitrarily, assuming the article is correct that some of these groups are able to overcome a 19% take, pay individual programmers upwards of $1 mill, & still net $50 mill. The $50k starting salary for making bets didn't sound all that bad either.

One thing which has been called into question since the article is the claim the HK racing is "scrupulously honest." A few days after the issue hit the stands 2 top HK jocks & some illegal bookmakers were suspended for alleged race-fixing,not entirely unsurprising given the massive sums involved.