What dose of testosterone was consumed 8 days prior to a fight? What level was that fighter and were they short notice on debut?
I am mostly referring to this widespread belief that the entire UFC roster is juiced to the gills all year round and circumventing long term testing. I don't believe that is true and as you said people would start testing positive more regularly. There was some recent coming out that USADA was allowing athletes to continue competing after failed PED tests as informers. The passports are a great idea and I hope UFC kept the rights for those. I am not sold on Drug free sport though.
The level I am more familiar with is other major orgs and knowing fighters that would skirt the weightcut, blood work requirements and use dodgy methods to beat those testings.
I'll send DM for the the first questions, it's not my place to give that much detail in public.
I don't think guys are juiced to the gills all year round and I think for the most part anything resembling heavy doses is super rare since the passports came. Most of it seems to be off season. Designer stuff can itself be indetectable but the effects of it on other metrics get complicated to hide because of the passport. I also believe that some failed tests get buried for various reasons but never have been told of anyone's direct knowledge of any specific case. Jon Jones seems to be one that everyone believes for the exact reason you said though.
I'll give you one example that I probably have posted here before. This one could be done for no cost other than the drugs but the example is a guy who has cash. All you really need is some ingenuity though and some modifications to the example.
Brock Lesnar owns a huge ranch. Brock fills out his whereabouts report stating he is at home on certain date. Testing guy shows up unannounced at the gate which happens to be miles from Brocks house and buzzes the intercom which the wife answers,
"USADA Testing guy here for Brock please"
"Oh Brock's not here right now sorry"
"Well that's gonna be a problem maam, his report says he is supposed to be home right now"
"Oh he is home he is just not at the house, he is off in the north forty somewhere"
"Okay I will call him, I need to test him"
"Oh there is no cell service out there sorry"
"that's fine just give me directions and I will go to him"
"Sure I don't know exactly where he is but you can go look. Do you want to feed and water your horse first?"
"I don't have a horse maam, I'll just drive"
"Oh there are no roads out there, it's a full days ride if you can even find him"
"Well I'm going to have to report this as a whereabouts violation"
"well do what you have to do I guess I don't know anything about that but I can have him call you when he gets back"
So Brock gets reported, but protests "I was at home like I said i would be"
Even if they ding him anyways, it's not a drug violation, (I think) you get 3 misses in an rolling 18 month period before it's called a fail. Poor Brock might even have some trouble out in the wilderness and be gone for months! Good think he brought plenty of diuretics and plasma with him. He might have to get an IV going due to a medical emergency or something which is of course perfectly legal. And if anything illegal happened to get in his system as long as it wasn't anything with long lasting metabolites it could be completely cleared from his system by the time he was able to get home. Brock is lucky that way.
Could just as easily be some guy who is training in Thailand but happened to leave the country right before the tester shows up and forgot to update his whereabouts app. Poor dude had his cell phone stolen while he was on the bus ride to south africa too. Just unlucky timing I guess!