A fact of life in snow country are snow berms left by the plow. Driving over a berm or even worse getting stuck on a berm and backing off, can be the end of your precious splash shield.
UPDATE: The skid plate will soon come off durning pre winter work over. At this time I will be cutting two large holes in the bottom for oil and oil filter access. Have the "no hole" version of the skid plate is a good idea if you are a ralley racer. However the station wagon only sees very mild offroading and the holes would be fine. A quick e-mail to Paul E, owner of Primitive Racing yeilded some of the dimesniosn and locations of the access holes. Attached is the e-mail repsonde from Paul:
Sure, verify all measurements for yourself prior to cutting.
You can use a 2.5" hole saw.
Drain ~2.5" hole location is 4.4" up (towards front) from center of the OUTER of the 2 rear mounting holes (elongated hole, measure from center) and 2.2" out (towards outer edge of plate on passenger side. So 4.4 up and 2.2 over.
Filter ~4.25" hole (2.5" hole then jigsaw or find a 4.25" hole saw) location is 8.9" up from the center of that same mounting hole and 4.9" out. So 8.9" up and 4.9" over.
Update: I have finsihed cutting the two access holes for the skid. See: