We*live on *a 58 RW.* You might wan to try http://groups.yahoo.com/group/RoughwaterBoats/
The sliding windows tend to leak.* I*took out the windows, and replaced the felt rubber*track.* The drain holes on both end are small and tend to*plug.* So *make sure the track and the drain is clear.* I put plex*a glass of the windows in the winter to keep the rain off.* *I am not sure*the structure*of the 41 windows, but if do not get any help on the RW site.* Let me know.