TGJB, Interesting observation about California being all over Frankel. Everyone knows how he all but completely has left sunny CA, leaving behind a smaller group of his 2nd string, and is now back home in NY with most of his best runners. At least til it starts to snow.
I assumed he left CA because he got home sick or because of the better climate here in the east or to get away from the high workers' comp insurance or because as he puts it they'll run better on the east coast tracks-I'm not that gullible.
With that said I don't believe the idea that NYRA is being less diligent in monitoring guys like Frankel than CA is. For me what this really comes down to is that I'd rather base my final wagers on my interpretation of your data rather than factoring in the unknown of who might be using what substance.