Quote from GordonTheGekko:
Btw have you considered hedging with super leverage, i.e. going net neutral by putting money in leveraged ETFs or shorting cash in forex on huge margin?
I would need a different broker. Any net 0 position, small or large, creates a fee. Since the roll cost on a long is greater than roll rebate on a short, there is an immediate net negative equal to spread + roll cost - roll benefit. The roll only applies if held overnight. In other words, there is no benefit to exiting the long and the short at the same time.
The best advantage I can see is to treat them like a single block until a desired price is reached, exit one branch, and let the other branch ride until the next desired price is reached.