Wish you had posted a picture. If you thought that your sample looked good then I bet it did. Maybe the owner of the shop likes a certain way of doing it & thinks that is the only way. I did see the tutorial for the 4 HST. I wasn't making anything that called for HST, but took some fabric from my stash & tried it. I thought it was a pretty neat way to do it, but I tried it out just that one time.