I doubt changing would take an extra 3 months. They try and make it sound like changes re set the clock and put you to the back of the queue, but that wasn't my experience. I changed paint colours 3 times (MSM, Blue, White). The last change I made was very last minute, and I got my vin and delivery date 2 days after that change.
That was at end of q3 last year, so the end of quarter push probably did factor in a bit. But that's when they were also renting out the internal centre to handle the volume of cars, I believe they have a more steady stream coming through.
My advise if it means anything is; if you love the white, go with that. It's tough to be patient, I get that, but every time you get in the car you'll be glad you waited for the version you wanted most.
Good luck!
I think I will call and change to black interior it's cheaper and I'm liking it more and more as I see it. Thanks for the info! I was super hesitate to change because it did feel from the people I spoke to at tesla that it would restart at the back of the queue.