31 inch vs 33 inch tires

Is the added inch clearance worth the extra weight. Looking at new tires. Efx motohammers wearing very fast. 600 miles on them and are more than half gone. Ride rocky trails and rock crawling. Already run 3 inch lift. 33’s will just fit I think without going to forward a arms. What do you all think. Like the idea of 33’s but not sure how xp1000 will handle them in fast trail riding and the occasional hill climb.