Bamboo Sushi is going to open locations in Seattle and San Francisco, and that has a lot to do with an investment that barely got any attention. Last month, news broke that Bain Capital invested in Sustainable Restaurant Group, the Portland-based company behind eco-friendly Japanese restaurant and its fast-casual, poke-happy compatriot Quickfish. Folks may know Bain Capital as Mitt Romney’s old stomping grounds, a private equity firm that accrued a heaping pile of bad press around 2012. We checked in with Cory Schisler, the creative director behind SRG, to clear the waters about the new stream of investment.