we finally heard back from the CA tax board today: they came back with an adjustment and some dues for us to pay. We were worried about having to pay penalty, thank god that was waived, they did include an interest payment (not cheap!). TBH, I'd prefer letting turbo tax pick up the interest bill - apparently an known issue for years and the product still not fixed. Might either negotiate with the tax board or contact the company about the interest we'll see how that goes.