Yeah short the ETFs that are long but it depends on the size of your account sort of and the type of account. In an IRA I think you have to use the short ETFs. Better customers can get better deals with money tied up in shorts and you can use leverage to your benefit, the same leverage you get from ultra short ETFs.
Here's a linky explaining the "short rebate."
Making Sense of the Short Stock Rebate
Done for awhile. Later.