All I used to study for the actual test was SESATS and the TSRA review book and ended up doing good enough to score better than most of the people in my program as a first year. This is on top of the usual reading for cases and preparing for conferences and etc...in general I use Sugarbakers book for thoracic and the Hopkins textbook (for big picture) and Cohn's book (to really drill down) for cardiac, although I supplement with Kirklin when I have time because its so complete.
I tried like hell to get through the JCTSE curriculum for the first few months and eventually gave up, its too much material and a lot of it was super disorganized/scattered and often very old. I remember there was one week where we had to read an entire 60 page chapter on tracheal lesions written in the 1970's or something....most of us will not be trachea specialists and I think a nice summary review would have been plenty for something like that, that's when I officially gave up. Supposedly they're redoing the whole thing this year but like horror movie sequels, I'm not interested unless I hear rave reviews.