XL and XXL yields

[wopthedo]

When examining yields, ie 300G per plant, etc, many seed suppliers state yield is either XL or XXL.
What do these two terms mean? Excellent and Extra-Excellent? 150 and 250?

If anybody can tell me, I'd be most obliged.

 

[potty1]

Extra large or extra extra large.
Take it with a pinch of salt though and concentrate on your enviroment and technique.
Good luck.