Okay, this makes no sense to me. I admit, I'm new to Mongoose products, but I've been gaming for over a decade and into printing for four or five years. How can there be "print problems" this often? Let me confess: I have not received a faulty product, so this isn't a direct complaint, just a curiosity to me.
I understand that Mongoose opened a press of their own and then recently re-outsourced the printing, but how can there still be so many problems? And why would all three presses have the same problems? And, if there were only two presses involved, why would a company go back to a crappy printer? Maybe technology is different across the pond, but it seems that printing from PDF files with computers is vastly available to even amateur authors. Just hire a new printer. Find a website like www.lulu.com that works with PDF files and use them. If they are too expensive, try renting facilities from a university or local publication house now that you have people who can ostensibly use the machinery. I'm not upset and have yet to buy a book from the internet (I just shop at comic stores and things), but it just seems like no company based on printing books could survive when they hire crappy printers.
Hire a new company to print your material. Period. Is that impossible? Is it out of the question? Are there no other partners available?