Funnily enough I had come to the same conclusion.

You can lead a horse to water but you cannot make it drink.

Anyone with half a brain can see the only way to close that significant gap produced by these particular solid beam mounts is for them not to sit parallel, thus bending the beam plate by taking up the slack with the bolt, causing the upper face of the solid mount not to sit parallel to the chassis and putting undue stress on the big bolt. FACT! whether you understand it or not, others reading this thread now do.

The OP and others have posted a fix, and pics to show the reasons why and I have detailed what is happening, if you pair are too blinkered to believe physics that's your problem. A pair of bolt on experts! keep buying the bling and the latest new fads gents and if I hear about a "stage car" on here one more time I will scream.

If Stu from MSD, Tony from Turbosystems, Mark Shead etc come onto the thread and detail why the OP and I are wrong then fair enough I would listen, their silence on the matter though is deafening.