Hi, I'm planning to hit up The Flagship lounge (instead of the B gate lounge) for a better breakfast before flying tomorrow.

I have TSA pre, but I think I'm right in thinking there is no TSA Pre in terminal B?

Sooo, is the line usually short enough so that TSA Pre is irrelevant time-wise, or should I check my bags in at B before walking to D to clear security there?

Also, does anyone know how long the walk is from Flagship to B5, roughly?

Any tips appreciated!