I'm having some issues with my new gorilla. I switched to SV from BM at the last patch but kept my cat until last night. I FINALLY broke down and wanted to try out a gorilla with all of the buzz. I find the new guy takes a beating since he doesn't have bloodthirsty from the ferocits tree. I have the throw a mend pet on him where as I almost forgot I had a mend pet button with my cat....I can live with that but it just surprised me as I thought a tanking pet could take more of a beating. Part of it might be because of my pets talent selection so I may revisit that one later.
Also, I tried the AOE/volley trick. My pet would do his thunderstomp and attracts 3 mobs to him, I start to cast volley and the two he isn't directly attacking bolt straight for me. Next time I let him get 2 stomps in and still pulled the mobs almost right away. If anyone who does this AOE grinding can offer any tips, I will love you forever (or at least for 5 minutes).