Does anyone have any experience with adding FSD after ordering but before VIN assignment? I ordered a P3D+ back on 6/27, fully optioned out except for FSD. However, with the recent earnings call revealing the upcoming hardware 3.0 upgrade, I'm leaning towards adding FSD as well. That said, my #1 priority is to not delay my delivery at all (current window is Aug - Oct) as I don't want to miss out on the full tax credit and I just plain want my car. Does anyone have any first hand experience with whether or not adding FSD pushes you back in the queue? Does it cost anything beyond the $3,000 option price?