Lol at some of the paranoia here.

U give the firm's way too much credit. BTW There's no such thing as a superb info sharing network across the firms working to blacklist TC breakers. Heck some of these HR departments can't even sort out their s**t within their own department.

The only thing you may be risking is pissing off the partner in whose team you are going, really. But if it's a bigger firm hiring by department as a pool, then you're just an unknown entity. Chill.