Tournament referees will generally try to keep the competition mats clean, as described in the Field Setup on page 15 - Field Mat – Make sure the Mat touches the south Border Wall, and is centered east to west. Avoid cleaning the Mat with anything that will leave a residue. Any residue, sticky or slippery, will affect the Robot’s performance compared to a new Mat (many tournaments use new Mats). Use a vacuum and/or damp cloth for dust and debris (above and below the Mat). Most competition tables are set up the night before a tournament, or possibly the morning of the event, so there shouldn't be much time for condensation to occur. If a referee saw liquid water on a mat, I would expect that he or she would try to clean it away. In my experience, we're much more accustomed to dealing with dust than water. Steve Scherr Virginia-DC FLL Referee Advisor On Wed, Nov 4, 2015 at 3:34 PM, Kyongchan Song <[log in to unmask]> wrote: > Hi. > > Recently we notice this year mission mat is different and very sensitive > to humidity. > We experienced more slip of our robot on the mat after rain and humid day. > Is anyone has similar experience? > > Is is possible that in the morning of the competition day, a judge can > wipe the mat with dry cloth to remove some moisture from a map? > > Thank you. > > -- To UNSUBSCRIBE or CHANGE your settings, please visit > https://listserv.jmu.edu/archives/vadcfll-l.html and select "Join or > leave the list". > > -- VADCFLL administrative announcements are sent via > VADCFLL-ANNOUNCEMENTS-L. Visit > https://listserv.jmu.edu/archives/vadcfll-ANNOUNCEMENTS-l.html to > subscribe. > -- To UNSUBSCRIBE or CHANGE your settings, please visit https://listserv.jmu.edu/archives/vadcfll-l.html and select "Join or leave the list". -- VADCFLL administrative announcements are sent via VADCFLL-ANNOUNCEMENTS-L. Visit https://listserv.jmu.edu/archives/vadcfll-ANNOUNCEMENTS-l.html to subscribe.