..is the eternal wait. Waiting for them to be built, or waiting for the few US dealers to distribute what few pickups they get.
BKP C-Hawk bridge-in stock mid February
BG Bucker Dark neck 2-4 weeks
Both are going in my Ibanez RG2550ex, along with a Brass Block and Tremblock. And my Agile's Hellabucker is stripped because I kept changing between a5, a8 and c8 magnets like an idiot.
And then there is the wait with the tech (to be fair, he's a brilliant tech; when he retires I might have to move).
You can get them pretty fast by ordering direct from BKP. There's no waiting for stuff to be "in stock" when a dealer only places an order every few weeks.