I dont think pekketon would create the friction required for a conus style over denture, and if it did I think it would wear and become lose fairly quickly within a few months probably. Is he looking for something like a Montreal or Paris bar? Conus are not splinted like bars are.
The off angle posterior abutments would give me pause without the implants being splinted. Exactly why they dont make angle correction locators.
Well even if the pekkton could have a housing glued in like a normal conus? Aven without that tho, what kind of abutment? It would probably have to be a custom round and a cast to housing? And what if the science behind the concept is lost, there is no way to get the friction as good as it should be?
www.pantheradental.com 
There are FDA approved angled locators but only up to 15 Degree's everything else would not, as you mentioned, work correctly long term. I personally offer them for many implant systems (not made by DESS).
I'll present this to the Dr, thanks!!why you don't try this
Integrated Bar™
Benefit from a Wrap-Around implant bar without compromising on hygiene? Our vision: offering the perfect balance with the new CAD/CAM IB bar.
It removable like conus, but much more easy and compatible with megagen! (well as long it not 3.0mm diameter I can do it)
