i lowered mine with eibach coils and the rear camber was excessive and could not be reduced, i ended up fitting a camber kit made by KMAC and now have perfectly even wearing tyres, however that said i do feel that the cornering ability has been slightly compromised and that a little more rear camber would be good.

my intention is to monitor tyre wear and if the fronts start wearing faster than the rear, i,ll get some negative camber dialled in to hopefully even it out