What are folks with trade-ins doing for your pre-order? I've had my Model 3 trade-in expire twice, and at this point I'm holding off updating it since the valuation lock-in is only good for 30 days. My thinking is that I'd be better waiting a couple weeks to lock in the mid-May value and have it valid until mid-June rather than lock-in now (possibly slightly better value) and then have it expire at the end of June and have delivery a week later, and be forced to take an early june value (probably slightly lower value than mid-May).
Maybe I'm over thinking this, but the trade in value over the last two offers came down over $1k, and I hadn't even put 1000 miles on the car.