Yeah, I guess the Brits are just so far 'behind' that the AH-64D seems 'hard' for them to learn and fly. I've always been told it's 'easy' to fly as well
Chaps - if you read Ed's two books Apache and Hellfire I think he makes the point in there that it is not the helicopter itself that is difficult to fly, but operating it as an intergrated weapon system. Flying may be easy - but fighting it certainly isn't
Going from a analogue cockpit Lynx (or even in US service maybe a UH-1) to the all-digital Longbow, with its deep systems and capability is most probably what he is talking about here.
For the helmet mounted monocle for example, Apache pilots have to learn to independently control their eyeballs. That and learning the inside and outside of TADS, multiple radios, datalinks etc as well as tactics is why you intially had the high washout rate.
You are maxed out coping with everything - not just flying.
That's also why he was a bit skeptical of the Ka-50 one pilot approach and its semi-glass cockpit.