Because of the one scheduled per dealer in each round, nature of scheduling, the quickest way to get scheduled is through a small dealer that has just your super duty on order and an allocation for it. You’ll get scheduled first round.
A huge dealer with 40 super duties a head of you will take 40 pick rounds to get to your truck, even if they happen to have 40 Super Duty allocations which they may not. If Ford is only scheduling 4 pick rounds per week, you’ll wait 10 weeks to get scheduled at the big dealer.
All dealers usually get at least one Super Duty allocation per month even if they didn’t earn any more.
You just don’t want a dealer with more orders than allocations, and don’t want one with tons of orders ahead of yours.