Karsten,
Thank you for the feedback. I always thought that the Yamiya cover would be of the best quality, but I wanted to make sure before the purchase. I did purchase the after market foam out of England and it has a rounded shape at the top, giving it an untrue to original duck tail seat look. I am trying to flaten out the top of this English foam with additional foam or even cut the top of the foam to smooth it out to give it the proper look. We'll see how I do. I just may opt for the good red foam from Yamiya.
The red foam and cover from Yamiya sounds like the best option.
Joe K.