I'm aware of some of the advantages for long term investors, but isn't that interest savings already built into the price of the SSF (or should be?). Something that obvious is rarely mispriced.
I still fail to see the appeal , especially in liquid stocks, especially for daytrading. I'm waiting for the baskets to trade, maybe there's something there. Or some illiquid pos that can be shorted on a downtick. Till then, SSF's are BoRInG.