Good question as the Scribble method cannot be automated. It's too arbitrary and exceedingly subjective.
As is the "grail system". What matters is which makes the most money. Even in hindsight, the "grail system" can't outperform the SLA.
Yes, funny why they just don't admit this. Makes it clear they really don't even trade it. I have no problem ( or no evidence) of intuitive trading savants that may or may not exist-- If these folks would just admit the subjectivity, no one could argue with them. It is the fact they try to present it as a objective system that is their own self destruction When it is automated and tested over multi-years of data, it losses money-- add in the vig and its a disaster.