what do with a risk free hedge?

[reformed]

Since many of the tennis betting veterans know that line movement in tennis does not reflect what is the winning side... is it a good idea to hedge every time you can risk- free. As an example I took ferrero at +100 and now verdasco is +104. I put 200 on ferrero so hedging would either break me even or make 8 bucks if verdasco wins. Considering what we know about line movement, at what point is it worth it to hedge?

[iceminers26]

I like JCF but my motto is anytime you can get free money take it, don't know if I would do it over $8 bucks but anything $100 and up, I always take the free money. Good luck with whatever you decide.

[reformed]

hard to imagine it being 100 bucks off line movement unless its real heavy