Both XMod2 (
http://www.cat5camp.com/xmod2/) and JAPlus Mod (
http://japlus.fragism.com/index2.php) have special features for duelers.
xMod2.6:
Can set the amount of force required\drained for special saber moves and katas
Automatic "anti-laming" (turning off saber and standing still for x seconds makes you immune from sabers and Force).
Can set whether or not sabers ignite automatically when the duel starts
Can set the starting health and shields for duelers
Can set ending health and shields for duel winner
Can set time a player must wait after they finish a duel before starting another
Can set the number of multiple simultaneous duels allowed
Has several types of duel ending messages
Can keep duelers from seeing chat while dueling to reduce distractions
Makes rolling like Jedi Knight II: Jedi Outcast (can chain rolls, can backroll without hopping first)
Can have JK2-style flipkicks
Can make single-saber Yellow and Red DFA like JK2
Can reduce saber throw damage to ~30
Single-player-style pull-stab available
JAPlus 1.8
Multiple duels at once
Flipkicks
All SP attacks added + Total new attacks and new DFA
Configurable saber Damages
fixed roll
improve single saber yellow DFA
can change saber type without respawn
can force players to make an automatic BOW move at duel start