I quit using any kind of lube except Imperial wax about a hunerd years ago...just a little swipe across the wax with my finger, rub my thumb and first two fingers together, spin the case BASE, about 1/3, and the case neck in those fingers and stuff it in the resizer.
Set the resizer so it just touches the shoulder, that way you aren't constantly reintroducing excess headspace in long chambers. You fit the case to the chamber when you fire it, THEN you fit the sizer to the case so it just pushes the shoulder back 0.001-0.002" so it will chamber easily.
This gets into a whole can of worms about press ram slop, sizing dies, shell holders etc. Do some searching on this forum, go to 6mmBR, Sabier, Long Range and some of the Varmint forums...most of this information has been covered on one or more of those forums.
It take time to learn all the nuances. Be patient, read up, crawl before you walk or run.
You will ALWAYS have to trim because squeezing down the case and pulling up the sizer button stretches the case. Even bushing dies WITHOUT the size button have some stretch. The case cycling through the sizing firing process causes the case to lengthen...no way to stop it.
The problem with the X-die is it is set to a specific length internally...if your chamber doesn't match then you have problems. The idea is sound, but the application isn't always workable.
Luck