Recommended skills courses around London?

Hi all
Relatively new to mountain biking. Been cycling for ever but only recently got a decent hard tail and went mountain biking in Surrey a few times.
I’m quite eager to get my riding to the next level, get into the good habits and really unlock the fun potential of the trails.
Have you gone through some skills coaching/courses?
Which ones would you recommended?
I’m particularly interested in ones I can get to within 2h train ride of London (and I don’t own a car... could Zipcar but I really value avoiding this hassle... and if I can help the environment it’s even better!
). But any opinion is good as it may benefit others here. 
Cheers
Relatively new to mountain biking. Been cycling for ever but only recently got a decent hard tail and went mountain biking in Surrey a few times.
I’m quite eager to get my riding to the next level, get into the good habits and really unlock the fun potential of the trails.

Have you gone through some skills coaching/courses?
Which ones would you recommended?
I’m particularly interested in ones I can get to within 2h train ride of London (and I don’t own a car... could Zipcar but I really value avoiding this hassle... and if I can help the environment it’s even better!


Cheers
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And it all promised so so much”
Giant Trance 2 27.5 2016 ¦ Sonder Broken Road 2021¦ Giant Revolt Advanced 2 2019 ¦ Giant Toughtroad SLR 1 2019 ¦ Giant Anthem 3 2015 ¦ Specialized Myka Comp FSR 2009
Tony, along with being a great rider, is a brilliant teacher. this is where a lot of the other courses fall down, as while the coaches can really ride, the teaching methods aren't great. All done at a private facility too.
Deviate Guide
Specialized Sequoia Elite
Pivot Mach 429SL
Trek Madone 5.2 Di2
Salsa Mukluk Carbon
Specialized Turbo Levo Expert 29er
http://www.chicksandsbikepark.co.uk/coaching