XP split by level

[Troxx]

In the past it was well known that it was your xp total that dictated the portion of xp you got in a group. This could be calculated by your race/class/level and % into level.

Now that xp is split just based on level, does it work like the following 4 people grouped:

lv 50
lv 50
lv 50
lv 55

The level 55 gests 55/205 of the xp (or just over 1/4).

Does the level 55 get 55/205 of the xp, or are higher levels (and hells) still given more weight? In this situation would the 55 still walk away from the group with a weighted portion of the xp since he went through the hells of 51-53 and double hell of 54.