Finally ... I now have the first prototype rear brace from Mike, this is just a very rough sample to see if it fits and see if it works.
Still alot of work to do, but it is fitted with no drilling, and after an initial test drive today I am certain I can feel a difference, I threw my car around a few bends and roundabouts and went down some rough roads, the whole back end of the car just felt alot more like one whole chunk of car, felt good, the brace sat solid and didn't move or pop out, you can't move it with your hand it is rock solid. I will continue to work with Mike and test it, I have trackday on the 12th of March which will be the acid test, might even do some laps with and some without it to feel the difference.
More soon.