i know a local lad who has an MSc in Strength and Conditioning, and he has trained some of the crossfit trainers. hi name is Mo, and his gym is up Daubhill.
If anyone is interested, this is a link to his website. there are a lot of bull shitters in the fitness industry but this lad knows his stuff, and gives you no shit. he trians all types of athletes, but does a lot of work with strong men. he only trains clean athletes too.
http://www.mo-power.co.uk/