My sense is that regardless of whether it's seven minutes, eight minutes, or six minutes, these are tight time frames. I think the onus is on the members to prepare questions, preferably in writing, I would say.
When you have a witness who is being forced to consider things quickly and respond quickly, they should probably get some guidance at the very beginning so they understand this is going to move very quickly and they're going to have to respond very quickly.
I like the discipline of short time frames. I think it forces us to prepare in writing. I don't have a problem with the short time frame.