Thanks for posting the detailed photos Laurens, very interesting. It appears to be a good job and the upper tube inserts go further past the crack prone area around the upper rear wishbone mount than I had thought possible. It's much easier to see exactly what the situation is with the body off, I wasn't sure exactly where the tubes were crimped. The welded in brace should improve things greatly as well.

Nice to know that there is a viable alternative to the full, expensive MMC chassis change and at a more reasonable price as well I assume? I had wondered if a whole new forward chassis grafted on, as with Trikings, would be a better solution but that looks pretty good and should sort the problem for good.