Isn't the sheer visceral thrill of dicing enemies like turnips enough to compensate for a little unbalancing?
Since the g_saberrealisticcombat variable makes saber hits to the models limbs etc. sever them, it has to make the saber more powerful, there's no way around it. Especially in duels. I bind a key to cg_saberrealisticcombat 1 and another to set it back to 0. That way I can turn it on and off (and the carnage) at a whim.