Today I looked through the back wheel and saw there's a small problem... because the MP3/MSF/MSP rear crossmember forces the "L" brace to sit out further, it rubbed on the front lateral links:
So what I did was got the Dremel out and grinded the brace down a little... took a couple of millimetres off which make it go from 1-2mm clearance to 4-5mm
All better now, I think!
I am waiting for the paint to dry, and I will go take it out for a spin tomorrow to see if this is good enough after I toss the car through a couple of corners