Yes but clearly he was far from his best in that final & was relativley untested.
You're probably correct though, It is more to do with his mentality for sure rather than any other kind of issue but either way the result is the same.
The MC 2nd round match to me was completely surprising as I'm sure it was to you although Troicki was not at his best either.
Maybe playing on clay has lost some of its difficulty to him, maybe this year he'll come of age on it. Certainly he played with a level of determination I've never seen before at this stage.
He's a hard one to figure out sometimes.
One other possibilty is that he has finally managed to absorb his most recent training regime and that has now started to augment his game, rather than destablise it.
Now that would be promising if it were the case.
But once you figure out how his mind works (albeit difficult thing to do), you will be able to figure him out as well, though I'd say, there are other possibilities involved; for example, strategic plans, uncertainties etc. We are not sure what Andy's true plans are or what didn't go as planned etc., so obviously we always somewhat remain in the dark or feel the need to speculate things. I think a couple of more matches will tell the story. Both Nadal and Nole are also through in the meantime.