XP: PEL vs. EL?

[Pssthpok]

Hey, UK.
Version 4 of Challenging Challenge Ratings has a system for determining PEL and comparing that to EL.
Is this still a functioning mechanic?
If not, what are you doing for PEL now?
The reason I ask is because in Version 5, IIRC, a 31st-level character equals an EL 20. 2 CR 20 Balors equal an EL 20. In a one-on-two fight, the 31st-level character would stand to gain either a LOT of XP (using EL 20 vs. EL 20) or very little XP (using PEL 27 vs. EL 20).

My question then is simple: How much XP would a 31st-level character gain by defeating two Balors single-handedly?

[Upper_Krust]

Hiya mate!

Listen I already have a thread about the CR system in this forum. Can you repost in there, so that I can nuke this thread.

Challenging Challenge Ratings...again

No point making multiple threads about the same thing. Thanks.

[Pssthpok]

Oops. Moved; sorry 'bout that.