Another thing to watch out is that the pet Rarab WILL link with any other Rarabs on the pull path - my friend discovered this the hard way when their puller grabbed one of these as a longish pull (20s or so run time with flee) and when it arrived at camp the pet had brought 3 of its friends with it ><;
From my experiences as BST, these took especially long to kill for decent mobs. It wasn't because of the goblin's pet (which was always a nice bonus), but instead the mobs higher than average HP and "killer effects".
The exp from the pet makes up for the slightly longer fight though.
If you're xp'ing off of these and you want a fast chain, try to pull find one of these at the start of your chains (1, 2, or 3). Pull the pet first for a fast fight to kick your chain up, and then pull the gob itself. Or, if you're crafty, pull it's pet, kill it, and then find another hobgoblin to pull. By the time you're done killing the gob, the animaller will have most likely summoned another pet. Pull that, and then the animaller itself. Easy chain 5, 6, or even 7 if your party is in the groove.
So your order should look like this:
1.) Hobgoblin pet 2.) Hobgoblin 3.) Hobgoblin 4.) Hobgoblin pet 5.) Hobgoblin 6.) Hobgoblin *7.) Hobgoblin
First time in Bibiki, saw a dead 71smn there. i was confused how did he/she died there. few steps further in, i saw a Hobgoblin (watever), same looking as gob butchers. I check it Inc.T as 65THF, so i was messing around since i have hide. It hit me 150-200 each time. i hit him 3-13 each time XD. so have fun with it 70ish ^^'