I am no expert, but seem to remember that somebody here, during the Chartier aftermath, mentioned that the time before EPO cannot any longer be traced in the body, is less than a week?
If this is the case, you´d be darn stupid to dope the last couple of weeks before a big race like Kona. You will still have all the benefits leading into that in training.

But hey ... people are stupid, I know .... dopers a stupider :)