Hi Guys and Gals - I've gone back to the Milli No10-2. This is solid bits of infused FG at 30GPa stiffness. This is a lot of epoxy and epoxy is many $$$. So I've decided to go with FG "skins" about 15mm thick (this will be heaps for drilling and threading if needed) then backfill with CSA cement (E=30GPa or 40GPa) I'll probably put in steel fibers in the CSA to lift this a bit. This gets back to my original concept but the CSA will be cheaper then the epoxy backfill and potentially stiffer. So Milli No10-2 stats are in N/um X 28 Y 30 and Z 48. This is with 30GPa material so the FG/CSA maybe stiffer. I have not used CSA before so will get some and have a play. Onward and upward Peter