Unless something has changed since the initial introduction of the first UcD modules, they still cannot be serviced in the field.
If a manufacturer is incorporating the Hypex technology in their products and an amplifier fails, they can't service the module in house, it has to go back to the Netherlands and Hypex services the module.
This means that the company using the Hypex modules has to stock an inventory of modules in house to swap out for modules that failed in the field. This is potentially much more expensive than having a small spare parts inventory and ordering a few more transistors or what have you, on an as needed basis.
It may be that the UcD modules actually did not sound good enough to suit Paul and we know he didn't want to pony up for the NCore technology, so a different direction is taken.
It will be interesting to see if his "statement" amplifier is priced similarly to amplifiers using NCore technology and how it compares sonically. He may have a better profit margin on an in house amp that is in the same price range as an NCore based amp.
Scotty
