if you do any shaving/cutting it down ( for height ) trim from bottom side not to change look of seat were it goes under cover. Good job !i took a relatively short 30 mile test drive today and my observations are very positive with the results. The gel pad really spread out any pressure points i had. And the familiar ache in my lower back was gone. The gel pad also served as a good shock absorber. I am planning on removing the vinyl cover again and adding another 1/2” of upholstery foam to make the seat even more plush.