My funds and storage space are both very limited right now so it would probably be just a small amount to start with. I'm hoping to get into a house with a shop to work out of sometime in the next year. When that happens I will be in a better place to stock up, but until then I have to pretty much order for each job. I just took a job for a custom made seat for an older Harley. The guy the seat is for is rather short and wants as little foam as I can put on it and still make the bike ridable. I was thinking about using an inch and a half of extra firm foam toped with an inch of firm memory foam.