Evans has been a diesel in the past, but several years of climbing, plus his puncheur skills, have meant he has developed an attacking kick in the mountains. No, he's not dancing on the pedals like Alberto or rocketing away from people like Riccò, but with his ungainly climbing style he was never going to be doing that. To tell the truth, it's been there for a while, but you'd get several times where he'd attack (or more likely counterattack) once on a climb (see Hautacam '08 for an example), it wouldn't work, then he'd get disheartened and sit in. It was more a lack of persistence than a lack of attacking kick that held him back at that point.