On Monday, September 7, 2020 at 5:55:34 PM UTC-4, wrote:
What are you using to remove the gel coat?

If using sandpaper, consider switching to Abranet in a fairly coarse grit.. It doesn't clog up like regular sandpaper and lasts a REALLLY long time.
Mark, I have thrown everything at it except dynamite, I am making progress, slow as it is , it will be very nice. I did Abranet in very course grit, just had to try most everything. Finally made some progress with some material from a local boat manufacturer, it did much better. I have built back up the stab and a final sanding before applying the urethane. I might try the rudder next and then move on to the fuselage. The wings are very good, even after a good sanding and hard wax. My wife flies this old girl most of the time, but I do get in it from time to time, it is a great flying glider.