Greetings,
Sometimes it is possible to have a buddy that is only one or two levels higher than you and you would like to enjoy your time questing with him.
In reaper this is a problem due to huge xp penalty for level difference.
To improve grouping chance and experience I propose an xp banking system.
A vendor can remove a quantity of xp from a character to bring him exactly to one xp more than the level requirement.
This, of course, don't completely solve the level difference but can help to permit a more quickly alignment of levels between the two leveling buddies.
The removed xp is then put in a gem (bound to character) that can be eaten only at the minimum level of the character that created the gem with his xp.
Thanks.