My best guess is the availability of truck drivers to deliver from CA to OH and how many vehicles are to be delivered.
- Are there enough trucks/drivers available on that route?
- Are there enough Teslas to fill the entire truckload?
- If not, are there enough total vehicles to fill the entire truckload?
- If so, are there any delays from either Tesla or other manufacturers?
Not surprisingly I see CA orders fulfilling in slightly shorter timeframes. My order date is around one week before yours so we're in the same time window.