Where do I start

So I recently started making my own shirts with DTF transfers but I have to order a certain quantity on new designs so its nice to be able to just order one shirt to test it out with possible consumers when I go to conventions. Let me just say I love the stickers I buy from the Mule, trust me I've bought many and will continue to do so. Shirts?..... not so much. The design was way off on colors, placed too low and off center. Clear to the naked eye but I also have measuring tools and techniques for when I do my own transfers that when placed on the shirt confirmed it was off. I'm not a tuck your shirt kind of guy but if I was the design would be about two inches past my belt line. I say stick to what you do best Sticker Mule or hire people who actually know a thing or two about making shirts. Still a loyal customer, just not for shirts.