Not sure TBH - I quite like the way they sit as is, if I did get spacer then probably no more than 10mm. I think it maybe needs lowering by 10-20mm and I'll see how it looks then.
Cool. As long as your happy with the set up then that's all that matters.
Would love to lower my car but too many speed bumps in my area so don't think it's worth the hassle.