Surely if they change the loom its under warranty?
If you've done everything possible mechanically then its got to be something electrical. They've got to start with the cheapest component (which I doubt is the whole loom) and replace things without charging you until they fix it.
I'm undecided! It's a sexy car without, at least stuff like this takes 20 mins to put on and 2 to take off so it doesn't really matter!
Hopefully should have the material to do the roof next week. That'll be more permanent!!