Looking at all the alternatives in creating a workable, reliable lower truss block. Had to test simply splitting the block in two with a hinge on one end and the tightening bolt on the other. Conclusion:
- Provides a more satisfactory clamp around the pole.
- Introduces new issues, challenges, skills such as, countersinking and installing a hinge (8 of them).
- Cost of 8 hinges and screws.
- The gap between the two halves has to be managed carefully to provide enough room to clamp around the pole and yet not to much force to loosen the hinge screws.
Thanks to Matt again for the idea. Your going to tell me "I told you so".
Its looking more like the best solution for many reasons is using Delrin manufactured blocks.