A contribution that explains the different types of double safety, demonstrates their use live and finally takes a stand on the sense and nonsense of permanent redundancy in tree care.
Belt an d braces are always better?
Redundancies, back-ups and double safety in tree care and elsewhere;
Where do they make sense, where are they mandatory and where can they be dispensed with?

A lesson by
Mark Bridge, treemagineers, Rannoch, Scotland