If you are not already using an adjustable lanyard, you should be. The ability to reduce or eliminate the distance you can potentially fall is probably the best improvement to height safety yet.
Permitting a fall of up to 2metres is, by my book, completely reckless. There is virtually no excuse, ever, to have slack in your system with one of these lanyards. Strong rope access equipment.
Adjusts from 1.2 to 1.8 metres.
Comes with steel snaphooks at both ends.