Playing consecutive CTs is not suicide, as the CT effect is not decreased with the decreasing enthusiasm so you can compensate the lower enthusiasm.
This is silly :)
Let's say it this way: You say CT always gives you the same amount of performance... Let's say 2 points... If you have Enthusiasm of 5, 5 + 2 = 7... If you drop to Enthusiasm of 1, 1 + 2 = 3... Then, with Enthusiasm of 1, you'll still be bad even if you play CT...
Or you wanna say that you'll always perform the same when playing CT? If it's that way, everything else is irrelevant, let us all play CT every game :)