Man I REALLY wanted a skid plate for my 2011 WRX. I haven't even considered it for my BRZ... and you just reminded me that they make JDM OEM underbody panels for my car too... I might invest in that. The WRX's plastic undertray was weak, but the BRZ's seems to be more robust.
Anyways, very good suggestion on that! Timely reminder with PFD's right around the corner.