Thanks Michael and all the feedback here - I tried Print Tool but found the same issues.
A dedicated printing machine with a pre Ventura OS seems to be the only work around at this stage for printing plates. Not a great option for us teachers who work with a variety of clients. Presets are essential when working with several polymer plate types and sizes in a workshop environment.
For straight colour printing I have been using Epson Print Layout, which seems to be faithful to Colour Sync issues.
Onwards and Upwards!
Silvi
www.silvi.com.au