You would not cause any issues with your pre-order if you elected to get the IPBB-F as we will get you upgraded to the Sonic Fiber as soon as it becomes available. So the IPBB-F will be a nice stop gap until Sonic's Fiber gets out there. Think of it as practice fiber.
Give our team a call at (707)522-1000 and they can get you signed up or order the service through our online ordering at https://www.sonic.com/availability
The pre-order will still be in place and once we get fiber in your area we'll reach out to get you upgraded.