Will 12mm spacers give me the flush look?

[Tuttivini]

A couple of weeks ago I bought a 2019 Audi A4 40tfsi AVANT Black Optics.
It has the lovely Audi Sport 5-V-Spoke 19" 8.5j ET40 245/35/19 wheels (on sport suspension)

I want to buy spacers to get the 'FLUSH' look.
What size would be perfect?
I tried to measure and I think 12mm on the rear and 10mm on the front would get it flush (flush with the tyres which have little rim protector lips).

Is this correct?

On a local secondhand marketplace I've seen four A-brand 12mm spacers, 5x112, 66.5, with the correct longer bolts. Would 12mm give me a flush look or stick out (I don't want that)?

Thanks,

Tim
The Netherlands

 

[DPM]

Hold something flat against the arch and measure from the tyre sidewall to that, the distance is the spacer size you'd need to get the wheels flush.

Damian @ DPM Performance

 

[Tuttivini]

Thanks. I hang a small cord/rope with a small weight, taped to the arch and when the cord hung still, I measured the distance from the tyre sidewalls. Front 10mm and tears 12~13mm.

Would 12mm rear and 10mm front be best, or better 10mm on all wheels (performance/handling/looks/etc)?

 

[DPM]

10mm front/12mm rear

Damian @ DPM Performance