Why no dueling?

[Nalien]

Also, ilevel sync would be absolutely retarded.

Honestly, given you seem to want duels for practice (Ultimatecalibur pretty much covered why that doesn't work, so I wont bother) I'd love to know why, given PvP is ilevel capped. What sense is there practicing on a i130 Black Mage against a i80 Dragoon? All that does is give miss information, like how many nukes it takes to kill them, or how many hits you can take. If you're both capped at the same level, like you would be in the regular PvP you're practicing for, it gives a much better base to practice from.

I would actually say Wolves' Den is there for practicing. 4v4 lets you learn how classes work with and against each other and is far more useful than learning how quickly a good Marauder can wreck any mage 1v1. Duels have never been about practice, they've always been about settling arguments or showing off, both historically and digitally.