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Originally Posted by shaggs  I initially looked at the poll and immediately thought, and voted higher....always. But then looked at the diagram and thought...."what about blocking down". Then the TIP is below the rigging point. 
But in general, always above, always false crotched.  |
See now, for blocking down, I was taught to have the rigging below the tie in.
The thought being that if the rigging slips a bit it won't slip into your tie in, also rigging won't be running across your lifelines or the block banging into them either.
I've done some 80' Norfolks, rigged down two of them, (the rest were chop and drop) but I was in a high lift. Watching the rigging, there is no way I'd be happy tied in below.
For that single leader scenario, its a case of eyes on the scene...which part of the tree will be better able to withstand the shock loads, common sense would say lower=thicker=stronger.
Any time you are limited to having the same leader for tie in and rigging, small sections and no/low shock loading should be the way to go.
I agree with those who say that students should be taught to THINK! Teaching is usually to 'best practice' standard but you have to be able to know when to adapt to unique situations, and to realize when things are not safe and might require a re-evaluation, more equipment, second opinion, come back another day!