'No' to both, although I'm giving serious consideration to parking a TT (either the one I have, or the one I want...lol) in a nice warm location this winter (say, post-Thxgiving through end of Feb.)
Before then, I might be in Yellowstone or Smoky Mtn parks in the fall - I know it starts getting colder during the nights in September (but not super cold, and it warms up the next day).
You might call me a 'belt-and-suspenders' type, but I'd rather have the inconvenience of prepping for cold, than enduring the pain of fixing broken / cracked plumbing. Once I'm out in the trailer, I don't want to have to constantly worry about the plumbing (but probably will, anyway, TBH).
Maybe it's a result of reading the many posts on this site about things that could / can / do happen...
My currrent trailer has *some* coroplast, but not full end-to-end. If I hang on to the trailer, I'll probably make it a fall project to boost the insulation (at least to 'Alpha Wolf' standards...LMAO)