<abundant technique in the endgame> That is a very generous assessment. =)

euripides: It's quite a delicate ending. I think the position after White's 58th would be drawn in the absence of Black's c pawn:

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when either 58...Ra4+ or 58...Rc7 look drawn.

I'm not suggesting that Topalov is the best endgame player out there, but my knowledge is insufficient to make a good assessment. Obviously, Kramnik and Anand come to mind as good endgame players, but to my eyes, anyone in the top 100 looks like an endgame genius. Leko seems like more of a finesse player than a tactician, and I suspect his endgame is also very strong. Of the top players, it is only Topalov and Morozevich who strike me as more tactical (and maybe Polgar?) and of the two, I think Topalov is the better endgame player, but what do I know? What's your assessment?

I think, yes, Topalov has great endgame technique.

You have made an excellent observation how Topalov's tactical skirmishes often lead to a superior endgame which still requires some tangible technique to convert, compared to other famous tacticians (e.g. Tal) whose brilliancies usually end in the middlegame.