Pretty cool actually. As you drop it in position and swing just 3 clamps into place it disconnects the folding top screen heater and connects the hardtops. At the same time it deactivates the roof open/close mechanism. If you happen to have remote roof by key or Reinhold it also switches to just be a remote window open /closer
This is IMHO one of the top mods that can be made for UK winter use.
Yeah still got it, but got a bloke hopefully coming round to see the car next week, he's interested in the hard top too and I said I'd keep it until he's seen the car. Hope you understand.