pressure washed the mav 3 times. pulled the interior plastic out while servicing it and there was 20 lbs of mud packed in above the skid plates. Not sure if it came from underneath or from inside when i washed it. (or both) trying to decide if i want to cut some holes in the skid plates. I plan on upgrading to the plastic skids . just wondering what the rest of you have been doing. pro's , con's of each?