I ended up ordering my decals from inplainsightart.com. They print every Wednesday and ship every Thursday which had me sold due to my very short deadline. I had to make 23 trophies/plates. I had never single fired, thrown a plate, or used decals before. Luckly I only cursed the World a few times. They came out according to plan! 17 done anyways already with a week to go.
Thanks for the responses....I'm guessing underglaze doesnt stick to the shelves cause it doesnt have flux? I have never worked with it before. With my project, I am working cone 6 and adding decals, so I really dont want to fire to 3 different cone temperatures so I don't think that will work for me. Just want to write something on the back and dont care too much if its permanent, but that would be a plus.