Hi, was just wondering if anyone can recommend the best extension course? I am a hairdresser and have had a look online but really looking for something that is quite detailed with regards to colour matching, method , cutting and styling ext? There is just so many people that do them just now with few actually being good at them its something i would actually like to specialise in ext. Any recommendations would be great... preferably in Scotland but willing to travel down south. Thank you 
