Bottom Pan for Robot?

[pilum40]

We are discussing putting a bottom pan on our robot and need to make a decision tonight. The discussion revolves around wood vs. thick plexi vs. old fashioned steel. We've got all the materials but wanted to see if this was overkill. I'm a bit old school in that I want to protect the bottom of the robot while going over the defenses and not get caught on them. We're using Rhino drive and are staying low so we can "low bar" easily. I'm also old school in that I recommend steel since we're way underweight. Thoughts? Any pearls would be welcome.

Thanks