Not so much playtesting as reality checking methinks...
I think this falls into the same category as those games that give katanas a bonus over other swords simply because they're Japanese
I have a friend who consistently points out that the bat'leth is completely impractical anyway (it would twist in your hands all the time and never hit edge on), otherwise some Earth culture would have invented it!
I have to admit, I'd consider rescaling it, then ramp up martial arts bonuses for those who really know how to use a given weapon. That would allow the likes of Worf to continue to flatten Jem'hadar with a single blow, while keeping things a little more equal!
Jon
"There are worlds out there where the sky is burning, where the sea is asleep and the rivers dream; people made of smoke and cities made of song.
Somewhere there's danger, somewhere there's injustice, and somewhere else the tea is getting cold. Come on, Ace, we've got work to do."
THE DOCTOR, "Survival" (Doctor Who)