Well it can be done with an open trailer no problem. However I only have a 20' enclosed and it almost cost me everything. Was on a normal tow home from Quaker city and it had rained earlier in the day. It for the most part was dry. I came into Chippewa (rt. 60) exit and hit a new patch of asphalt. Well the oil had come out from the high heat that day, then the rain came in. Well it was bad, trailer started to jack knife and I was in a slide. If it were not for the quick thinking of my buddy Derek it would have been all over. He yanked 2 lanes over seeing me coming at him in a slide. I recovered enough to get things straight, but was still in a slide. Was more than 1/2 thru the light when I finally got stopped. Went out that week and got a 1 ton dually Diseal to tow with, so much safer. See ya, Ken Michalik