sniper said:
			
		
	
	
		
		
			plus dearwiggo's argument: if tramadol or other semi-legal stuff were at the heart of sky's success, then why the tremendous advantage in 2012 and 2013 over other GT riders.
		
		
	 
With regards to Tramadol specifically I find myself in complete agreement (for once) with dearwiggo - clearly since the whole peloton is apparently soaked in the stuff, and it's legal in any case, 
you can't explain a competitive advantage through the use of Tramadol alone. Indeed, I don't think I've actually seen anyone suggest that in any case, so I think we can all probably agree the bolded statement above?
The difficulty though is that, if you believe lots of the posters on here, the whole peloton is also widely using epo/blood-doping. So surely exactly the same logic applies? For Sky/Froome to get a massive performance advantage over others, they'd need to be 
doing something that no one else was doing? Wouldn't they? (Or I suppose, just be better than everyone else!)
So there's two basic options from what I can see. One, as per the DirtyWorks idea, Sky have paid off the UCI and have carte blanche to dope with impunity, and no one else does. Or two, they're doing 
something different to the standard doping programmes we - and the rest of the peloton - all know and love.
Generally I'm minded to believe that there must be 
something that Sky is doing differently to get the results they did in 2012/2013 rather than just UCI corruption (maybe I'm just a sucker. . .), but if so, what would they be doing? It could be some secret doping sauce (
a la 'the clear' or whatever), but equally it could be some legal/semi-legal 'sports science grey area'.
Of course, given that I don't know what it might be, it's hard to make any judgement about the likelihood of the legality of it. It's also worth noting that whatever the 'big secret' is, knowledge of it seems to be spreading through the peloton (as you'd expect with any new approach) - Contador (working with ex-Sky Rogers and De Jongh), and Valverde (with ex-Sky Dowsett in the team), both appear to be more competitive and skinnier this year than last.
And also I'm aware none of the above are mutually exclusive - they could be onto some completely legal weight-loss/power increase training regime, and augment that with bags full of blood and cash along the way.