I would advise using automation for greyhounds, there is way too many markets to attempt to sit and trade manually but a bot will plod on all day!
But if you have never traded them you'll need to sit and watch some markets and even have a play manually to get a feel for how they move before trying to automate something
There is 2-3 bots in the main shared files section which are made especially for greyhounds markets which can be used as a starting point.
http://www.betangel.com/forum/viewforum.php?f=43
http://www.betangel.com/forum/viewforum.php?f=56