Keeping snow buildup off the slides is a must as manufactures do not recommend slide supports.
I would suggest you keep the trailer off level front to back a little to allow the water to drain off and keep ice build up to a minimum.
2016 F350 6.7L LB CC Reese 28K 2014 Chaparral Lite 266sab
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." 2014 19 days camping 2015 17 days camping201620 days camping