Yes, unequipping anything with finesse will help. Also, watch it if you're traited yellow, the trait "Comedic Timing" will reduce the resist chance, so you don't want to have any points on this. My burg is only lvl 37, so I'm not familiar with burg LIs, but you will want to keep an eye open for legacies and stuff that reduces resist rating. Other than that, maybe gear set bonuses? Those are all the things I can think of that decrease your foe's resist rating.
Other than that, I've found enemies in instances like IP or Great Goblin have high resistances, especially in T2. You might want to give these a shot.