In reply to HB47:
Arguably a bit Heavy, but i Just carry a Shunt.
Quick smooth and easy for prusiking, i always use it for abseil Protection, very quick in self Rescue Situation for Escaping the system, plus have used for self belaying for donkeys years with no Problems, despite the naySayers.
In my Opinion multifunctionality of the Shunt makes Those extra Grams worthwhile