Bon

ATS is Against the spread. Alternative Points Spread or Spread

% returns on scalping are ~1%. Usually find daily bets during baseball and NBA season.

Re line movement. I use a live lines service and also any unusual numbers offered by books. For rugby and league I try and analyse what Joe Public is going to bet and how that will affect the line. What is the line? Why is that the line? What will affect the line? (i.e. key injuries, adverse weather, team motivation, etc).

"I just need to see someone's track record and system to believe it" My track record is, IMO irrelevant as I'm not offering a tips service nor a quick rich scheme. What I would offer though, is certain statistical information that will help you with handicapping. What you do with the information is up to you.

Thanks for your questions BTW