Some reports indicate putting on/taking off Zipfit-lined boots requires more care and is more of a project than foam or Intuitions. Any difficulty keeping the Zipfit liner material in place putting on/taking off boots if the liner remains in the boot? Some folks advocate putting on and lacing up the liners, slipping them into the shell as in a plug boot, and removing them the same way. Recommended? If so, why?
Lastly, some recommendations to get Zipfits one size larger than the boot size to guarantee enough toe room. True?