I have purchased replacement windows from D&R but need some details on replacement procedure. Also, what is the best type and brand of adhesive to use? I'm not sure of compatibility of polyurethanes with the plexiglas. From earlier posts, I understand that the window outside the viewing area needs to be blacked out. Can ordinary black spray paint be used or will it reduce the grip of the adhesive? Does the adhesive need to be black? Any advice appreciated.Also, I've found www.rigrite.com to be a source for spar parts, stanchions & bases, chain plates, etc. for the 272.