Arbitrage/Surebet is waste of money if you're betting the other side at pinnacle..
Why?
Because the side you bet on Pinnacle will usually lose and your Pinnacle bankroll will decrease slowly.
Let's say odds are like this at Pinnacle,
Jack to win -164
Mike to win +140
You find "Jack to win" bet at -120 in another bookie.
Now, you can bet both sides and make a surebet (arbitrage) and guarantee the profit with zero risk. However, this is waste of money, why?
Because, the value bet is on other bookie. The bet you placed at Pinnacle is not a value bet. Time to time, you will have winning streaks in Pinnacle but over the long haul, you will lose more often and bets you lost at Pinnacle will drain your bankroll slowly..
At the end of the month,
You will have a situation like this:
Oh, very nice I made 5k net profit this month.
Total Money Won from other books: +15k
Total Money Lost (and deposited) at Pinnacle: -10k
Let me ask you. What if you didn't placed any wager at Pinnacle in order to cover other side?
You would be +15,000 up.
BECAUSE PINNACLE LINES ARE SHARPER!