It depends on how sensitive the testing methodology is. Yes, they can detect synthetic hormones, but if they are only checking for overall test levels then you should be fine. You really have to know what tests they are using. I know it may be hard to ask around without raising an eyebrow on why you are asking. There is a fair bit in the various bicycling forums about dope testing from the Lance days. I think Floyd Landis was caught for having such an elevated test level, not for the type of test used. Better to play safe, because these days the penalties are really ridiculous for the transgression.