New Foam for Sprung Seat Cushions - Professional Tips and Tutorial for All Levels

I replaced the outer, softer seat foam with a much denser one. I had not realized when talking with my friends that there were springs in the seat. I feel the springs and the foam left in place complement each other and would not advise changing that foam out.
I have been in the upholstery and interior decorating business for over 25 years, as well as teaching these subjects both privately and in colleges. I have drawn on my years of teaching to put this video together and hope to have answered all your questions.
Please feel free to ask questions and I shall see if I can answer them for you.
The answers to your softening seat cushions, a little improvement goes a long way.