I want to call your attention to a very consistent and easy to follow tipping service, namely Shaun Murphys Greyhound Racing Tips. All his bets can be placed for example on bet365 or betfair. Usually one selective bet per day. 1 Point System. Odds between 1,5 and 5.
You can read my review here.
Results since I joined:
October 2014: +39,65
November 2014: +13,52
December 2014: +4,2
January 2015: -9,38
February 2015: +5,98
March 2015: -12,36
April 2015: +12,27
May 2015 (so far): +9,92
I think his profit was in February even more, but I missed some of it caused by my own fault.
You can get a 7 day trial for £1 here.