I think Chessimo itself repeats enough, you shouldn't repeat it "manually". I've said this in the chesstempo forums too, but I think you're overestimating "structured" training. you don't need a software to structure it for you, you can do it your way. I think Chesstempo is way better and beneficial for tactics training than chessimo and CT-Art, but Chessimo is the best tool I've seen for practicing endgames. it's problem set is very nice, and indeed repetition is a must there, if you want things to sink in.
My ultimate endgame study material in mind was Silman's book for concepts and ideas + chessimo for actually using my brain for the relevant ending. of course I never had the time .
I have seen that several users here do use Chessimo .
I just started using it, to improve my tactics in a structured way: compared to other tactics trainers, Chessimo is based on repetition of patterns (each pattern is repeated exactly 6 times), and the problems are in a sequence intended to build up on the progress done by resolving the easier exercises.
I have noticed that, while I go through the Units, the time required to do a set of 90 problems gets bigger and bigger (as a result of the problems getting more and more difficult, of course): I went from about 8 minutes for the first units, to about 30 of Unit 7.
The question is the following: to maximize the learning, should I just keep going, or should I repeat the same unit until the time gets below a certain threshold?
Just curious about what other Chessimo users are doing, and what worked best for them...
Thanks in advance for any reply!
Andrea