I'm cleaning up the windows of my 1981 Catalina 27 (4844). Remove,repair and re-install. Here is my question. Is it OK to remove all the windows and frames all together or do the windows have to be done individually? The reason I ask, my brother said, with all the windows out it can cause loss of integrity to the upper cabin and distortion. My gut feeling is that you should be able to remove all the windows...to rely on the windows as part of the whole structural integrity, that they would cause the cabin to buckle or bend out of 'true' seems wrong. Your input is appreciated.