i think you have to do that to some extent, or you wind up sounding like a newspaper horoscope. if you're wrong, you're wrong, but at least you're honest. "you have some stress right now, but if you stay on your path and are true to yourself, you will learn something in the process." well, fabulous. me and 6 billion other people, right? i could have gotten that from a fortune cookie.
i do know what you're saying, and i guess i've just decided it's part of the process. sometimes you have to go out on a limb. part of learning to be good tarot readers is to trust that those specifics will mean something to the person hearing them. i get nervous when i get into too much detail, too, but time and time again i've regretted more NOT mentioning them than i've regretted blurting them out.