I'm brand new to cpa offers, and I'm still trying to figure some things out. But the one thing I can't get a clear answer on, is how much money, and how long should you test an offer before you move? For ex. I'm testing a ringtone download/pin submit that pays $13 a lead, on clicksor. I've targeted competitor urls, and I have a list of 1300 keywords, majority of which are long tail. I spent $20.00 today/got 2000 views, but no conversions. Should this be enough data after one day, to just move on, or am I calling it quits too soon? Any help would be most appreciated. Thank you in advance.