Morning All & Lurkers - Today brings the steel fibre investigation to a close. Block 4 has been cut out of the bucket. Its quite solid and there was a lot of paste on its top. At best it has 10% by volume fiber in it, which gets 34 low and 40GPa high in modulus. So I may as well buy grout that has 34GPa out of the bag. So I need to get some ALOX, SiC or Alumina to get to E70+. I shall try to get north next week for some ALOX. I'm tempted to knock back the material spec in Milli to 35GPa and move along.... material development is a tough gig.... Peter