I would like to see the pass/fail text hidden until AFTER you have passed or failed test for the attack. At that point you would have already decided how many Clues you wanted to commit to the attack and then, when you saw the pass or fail you would know whether using those extra Clues was a good idea or not?
Making it an option you can turn on would not effect you and would allow those who want it to have a more immersive experience.