EXPERIENCE boost from high level classes. Is it true

[Risvertasashi]

Say your highest level class is lv 25 MRD with 90% of the exp bar filled.

Then when you play any other combat class below that level, you'll get a 50% boost until you get to level 25, 90% exp bar.

Bit of a technicality but the above poster's example is a little incorrect. In that case you would only get a 50% boost until level 23 or so, and then the boost would diminish (you still get a boost, just not 50%).

Basically, to get the full 50% experience boost, your highest class needs to be 2+ levels higher than what you're leveling.