Hi - I am thinking of getting the 4x130 BRMs in a 15"x5.5". Does anyone run these and having rubbing problems? I'm worried that the offset (ET28?) will push it out too close to the back guards as a bit saggy at the rear! Standard height, but might want to drop a notch or two in the future. Do the 914 rims have the closer to stock offset? Thanks heaps