Sarameya and Cerb are almost two completely different monsters. Sarameya becoming stun resistant very easily makes for a completely different strategy. He aga's extremely often, which calls for a fire resist set, however getting ichi up is near impossible due to his attack speed. Ad to that a hate-shedding roar, and it's a much different fight altogether.
The only saving grace is at least you know exactly when Chainspells are coming so you can prepare for them.