
and why it's getting more attention that other blog posts, maybe im missing the point, maybe someone will explaine

obviously with betting close to 100% you are giving less away to the book, so its a sound principle to start with but it's a long way from a system.
If your looking to lay close to 100% then maybe just take sp wich you would break even before commision.
or if your looking for value lays and beating the ISP then surely based solely on the book %, some would turn out to be good value, some poor. and if were not trading the positions it takes alot of the skill out that could turn it profitable and you would almost certainly break even before commision at best.