It took me a few tries, but now I'm getting the hang of the tailor too. I used it yesterday on a top and pants that had zero morphs, and after running the 2 items through the tailor, was able to get the items to fit. Still have trouble when thighs aren't covered, because I don't know what morphs to pick, so I usually end up making those body parts invisible.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi