These seals fit quite well in my mk1 mgbgt if you start the fitting of the 90 degree bend at the bottom right door corner. The problem comes at the top left door corner which is also 90 degrees. The seal doesn't bend too well into this corner. It can be hit with a soft mallet and looks to have fitted but turn your back on it and it sneaks its way out of the corner.
Again excellent delivery time looks a good as did yesterday's front screen rubber for my MGB GT. Hope to keep in touch there's always something you need.