KevinS how is an ash different from any other tree? Surely you have protocols for other trees, extend them to ash.
There are lots of things to do. Bore into the tree vertically, use a resitograph, use a tomograph, use an increment borer, use a fractometer. Nothing that has not been done for the last two decades.
What about a "pull test" that includes a load cell so that you know the force being applies through the rope and with a few other measurements (rope length, placement height, etc.) you can calculate the exact load you have applied. If this meets the force you deem necessary off you go. I think a Rock Exotica load cell is $800, is this worth the help?
Perhaps you should be building your own library of knowledge, photograps, charts, tests etc. that you can use as an aid to helping others.
There are lots of things to do. Bore into the tree vertically, use a resitograph, use a tomograph, use an increment borer, use a fractometer. Nothing that has not been done for the last two decades.
What about a "pull test" that includes a load cell so that you know the force being applies through the rope and with a few other measurements (rope length, placement height, etc.) you can calculate the exact load you have applied. If this meets the force you deem necessary off you go. I think a Rock Exotica load cell is $800, is this worth the help?
Perhaps you should be building your own library of knowledge, photograps, charts, tests etc. that you can use as an aid to helping others.