I used Esprit years ago and liked the software very much. But there was no help getting the post to work, even though it was a modified basic Fanuc post. I got lots of help if I had a specific question or wanted one thing to work a certain way but you have to be very specific about what you want.
As for your machine, I would think they would have a bit of that done as they advertise the multifunction machines heavily. Perhaps there just isnt anyone that familiar with Mazak at the moment. Or perhaps the machine is new enough to you that you dont know how to ask the right questions. That is sort of what my problem was, I was so new that I didnt really know what to ask for so I just downloaded the manual and started writing my own post. It took a while and I did get some help with what I didnt understand and in the end worked just fine.
For what it is worth I had the same problem with the software I use now, I just knew more about what I wanted so I wrote my own post. I will bet all the software companies will work about the same.
Charles