Sweep solution setup in HFSS

I'm trying to simulate an antenna in HFSS. I have a question about setting up a sweep solution. HFSS recommends using a distance of at least λ/4 between the radiating structure and the airbox and λ/6 for mesh seeding. If I'm including a sweep solution, which λ should I use? Should I use the smallest λ (corresponding to the highest frequency) for mesh seeding and maximum λ (corresponding to the lowest frequency) for drawing the airbox?

Hey Zappa,
You got it right.
Ananth.