I set up 4 more key binds in place of the standard /follow. First set for key press x to have my master to target the brewpup and release x for my slaves to assist master and interact with the pet (I hold down the key for half a second to allow for the lag that seems to be unavoidable while assisting). Second set almost the same except that the key press has the master target himself and the slaves to assist and interact with him, for use when they are all mounted and the master is in a multi person mount.

I also set up a couple more binds for clearing targets on the slaves so they don't run off before assisting to the proper target and for a tap to backpedal to stop them before they assist to pet or master.