Originally posted by diskamylCTS trains more the ability to find tactics, CT-ART trains more calculation. both are important, but separate skills... surprisingly, the CTS part seems to affect mostly slow chess.
I had a very high percentage on CTS (around 89 I think) after several thousand problems, and I discovered even if I try to solve the problems not by guessing but calculating variations, it still gave me very bad thinking habits, so I quit it.
tactical study should be different I think. it should involve taking up your time (not talking about seconds her mple of wormwood, for whom the CTS works perfectly, all of this may not be right for everybody.
I'm not very good at calculating, but as a result of CTS I find the tactical candidate moves quite quickly. you can't calculate a move if you don't find it first.