In reply to Landy_Dom:
Your bang-on with the GriGri being the main reason for the Rhino. With a standard belay (in my case a reverso 4) it works as any HMS would. The spine of the Rhino is pretty good for tying off the belay. Plus the twist-lock is easy to use and means I don't tend to check my screwgate is done up every 3 seconds.
