In reply to Greasy Prusiks:
A bit of googling found this- "The final certification process highlighted the need for a design modification to guarantee the REVO’s performance across the widest possible spectrum of rope diameters and whilst we regret that this will delay its release, ultimately we are pleased to be working with a certification body that has helped us to realise our ambition of producing the safest belay device on the market.
We will begin production of the REVO with a new supplier that specializes in precision manufacture to deliver an exceptionally high level of finish to our latest innovation."
Sounds like a quality control problem with a supplier perhaps? Good to see they're taking the time to get it perfected.