When I understand right there are „oval“ holes fo fit the BRB?

I discuss this idea with Keith at BHM. The idea of the BRBs is to give more stiffness. If you‘ve got oval holes the BRBs can move and „work“ in this area, this wouldn‘t be good. In this case you reduce the stiffness.

Greets René

2018 plus4 (sports green)
with a homemade really shiny red tinted dash…