We bought a Livingston Hat Press Adapter on Craigslist. I searched AdhuntR and found a guy selling one in NY. Bought it on a Friday and received it Monday or Tuesday.
Had to modify it to fit my press. It only had a Medium Profile adapter. I called Livingston and they sold me a Low Profile for like $60.00. It was well worth it to be able to print multiple colors on the hats. Also, Livingston told me they have an adapter to make it work on my press. Oh well, I already fixed it. Lol.
Buying this system made it much easier and didn't have to worry about making a mistake on the hats. Meaning Registration, etc. Was able to screen print right away.