Friend of mine has worked in 20 odd countries and with many various operators and long liners. Tells me there is a huge differnce between someone who can properly long line with precision and a Pilot that says he can do it. Many can't even fly Vertical reference!! How do you do a precise job if you don't look outside and at the line.
Anyway he tells me there is a very high houred Pilot who works for one of the very reputable lift companies setting in a training academy for this type of work. Tells me he works with him and he is seriously good! I will keep you updated if i hear anything else. PM me for more details