"So we have no idea what if anything might be under there." Izzy commented, studying the holograph closely. "Does the shield vary at all or is the size constant?" She'd never tried to mess with the building before now.
"I can rig up a teleport system we could use to deliver whatever we came up with, but we have no idea if the shield would work to protect it from damage from underneath as well." It was frustrating when she stopped and thought about it, they'd be working on blind faith that whatever they came up with would do the job and not fizzle on the shield.