hiring bird dogs

[Mario T.]

I am just curious to see what other people process is for hiring bird dogs and keeping them motivated.

I post an ad on craigslist, with compensation as 20% of the deal $500 minimum $1000 maximum. Then do a phone interview to explain to them what a motivated seller looks like and how to find them.  then I send them on their way. 

Is this generally what everyone is doing??  Maybe someone is doing it better or have a process they'd like to share with me?  Thanks in advance!