Use Jamba Strobing addon. Every second (or whatever you set it to) it spams follow on to the master. This is great when swiming, getting feared, flying, tight dungeon crawls, and other uses i probably cant think of right now.

of course used in conjunction with

/follow focus, /follow {FTL}, or just /follow Smith

Turn on Jamba Strobing
/jamba-follow strobeonme all

Turn off Jamba Strobing
/jamba-follow strobeoff all

download it here
http://wow.jafula.com/addons/jamba